Usage share of web browsers

The usage share of a web browser is the proportion, often expressed as a percentage, of users of all web browsers who use that particular browser. This figure can only be estimated, typically by determining the proportion of visitors to a group of websites that use a particular web browser. Browser usage share varies from place to place as well as through time.

Accuracy

Measuring browser usage in the number of requests (page hits) made by each user agent can be misleading.

Overestimation

Not all requests are generated by a user, as a user agent can make requests at regular time intervals without user input. In this case, the user's activity might be overestimated. Some examples:

Certain anti-virus products fake their user-agent to appear to be popular browsers. This is done to trick attack sites that might display clean content to the scanner, but not to the browser. The Register reported in June 2008 that traffic from AVG Linkscanner, using an IE6 user-agent, outstripped human link clicks by nearly 10 to 1.^[1]
A user who revisits a site shortly after changing or upgrading browsers may be double-counted under some methods; overall numbers at the time of a new version's release may be skewed.^[2]

Underestimation

It is also possible to underestimate the usage share by using the number of requests, for example:

Gecko-based browsers since Firefox 1.5 and Opera use fast Document Object Model (DOM) caching. JavaScript is only executed on pageload from net or disk cache, but not if it is loaded from DOM cache. This can have an impact on JavaScript-based tracking of browser statistics.^[3]
While most browsers generate additional page hits by refreshing web pages when user navigates back through page history, some browsers (such as Opera) reuse cached content without resending requests to the server.^[4]^[5]
Generally, the more faithfully a browser implements HTTP's cache specifications, the more it will be under-reported relative to browsers that implement those specifications poorly.^[5]
Some ISPs, mainly mobile phone carriers, have begun stripping the user agent strings.^[6]

Regional variations

File:Countries by most used web browser cropped.png

Most used web browser in March 2011:

Internet Explorer

Firefox

Google Chrome

Opera

according to Statcounter

Web browser usage statistics vary significantly in different geographic regions across the globe. In China and South Korea, Internet Explorer (IE) has approx 90% usage share,^[7]^[8] whereas in Germany and Indonesia, Firefox has approx 60% and 80% usage share,^[9]^[10] while in Belarus and Ukraine, Opera is the most popular browser with approximately 50% and 36% usage share.^[11]^[12] Chrome is the most popular browser in Tunisia and Albania with respectively 49% and 52% usage share.^[13]^[14] In Europe, since December 2010, Firefox has replaced IE as the leading browser with 37% usage share.^[15] IE's recent decline in Europe is thought to be explained by IE users switching to Chrome.^[16]

Summary table

The following table summarizes the usage share of browsers for the indicated month.

Usage share of browsers for April 2011
Source	Internet Explorer	Firefox	Chrome	Safari	Opera ^{[Note 1]}	Mobile	Unknown
Net Applications	55.1%	21.6%	11.9%	7.15%	3.3%	4.4%
StatCounter	44.5%	29.7%	18.3%	5.0%	1.9%	5.2%
W3Counter	37.8%	29.5%	15.7%	6.2%	1.3%
Wikimedia	44.52%	29.67%	18.29%	5.04%	1.91%	5.21% ^{[Note 2]}
Median	45.48	27.61	16.04

Usage share of browsers for March 2011
Source	Internet Explorer	Firefox	Chrome	Safari	Opera ^{[Note 1]}	Mobile	Unknown
Net Applications	55.9%	21.8%	11.6%	6.6%	3.2%	3.9%
StatCounter	45.1%	30.0%	17.4%	5.1%	2.0%	4.7%
W3Counter	39.3%	30.1%	15.6%	6.0%	2.0%		7.0%
Wikimedia	41.3%	27.1%	13.5%	9.2%	4.2%	6.6% ^{[Note 2]}
Median	43.2%	28.6%	14.6%	6.3%	2.6%	4.7%

^ ^a ^b Opera: NetApp and Wikimedia include Opera Mini.
^ ^a ^b Wikimedia: Safari and Opera numbers include mobile, so the mobile number is counted twice.

Historical usage share

StatCounter (July 2008 to present)

StatCounter statistics are directly derived from hits (not unique visitors) from 3 million sites using StatCounter totaling more than 15 billion hits per month.^[17] No artificial weightings are used.

**Global stats from StatCounter (Top 5 browsers)**
Date	Internet Explorer	Firefox	Chrome	Safari	Opera	Mobile
April 2011	44.52%	29.67%	18.29%	5.04%	1.91%	5.21%
March 2011	45.11%	29.98%	17.37%	5.02%	1.97%	4.70%
February 2011	45.44%	30.37%	16.54%	5.08%	2.00%	4.45%
January 2011	46.00%	30.68%	15.68%	5.09%	2.00%	4.30%
December 2010	46.94%	30.76%	14.85%	4.79%	2.07%	4.10%
November 2010	48.16%	31.17%	13.35%	4.70%	2.01%	4.02%
October 2010	49.21%	31.24%	12.39%	4.56%	2.00%	3.81%
September 2010	49.87%	31.50%	11.54%	4.42%	2.03%	3.50%
August 2010	51.34%	31.09%	10.76%	4.23%	1.88%	3.21%
July 2010	52.68%	30.69%	9.88%	4.09%	1.91%	2.86%
June 2010	52.86%	31.15%	9.24%	4.07%	1.91%	2.57%
May 2010	52.77%	31.64%	8.61%	4.14%	1.96%	2.32%
April 2010	53.26%	31.74%	8.06%	4.23%	1.82%	2.18%
March 2010	54.44%	31.27%	7.29%	4.16%	1.97%	1.96%
February 2010	54.50%	31.83%	6.71%	4.08%	1.97%	1.72%
January 2010	55.25%	31.64%	6.04%	3.76%	2.00%	1.56%
December 2009	55.72%	31.97%	5.45%	3.48%	2.06%	1.28%
November 2009	56.57%	32.21%	4.66%	3.67%	2.02%	1.21%
October 2009	57.96%	31.82%	4.17%	3.47%	1.88%	1.15%
September 2009	58.37%	31.34%	3.69%	3.28%	2.62%	1.12%
August 2009	58.69%	31.28%	3.38%	3.25%	2.67%	1.12%
July 2009	60.11%	30.50%	3.01%	3.02%	2.64%	1.05%
June 2009	59.49%	30.26%	2.80%	2.91%	3.46%	0.94%
May 2009	62.09%	28.75%	2.42%	2.65%	3.23%	0.86%
April 2009	61.88%	29.67%	2.07%	2.75%	2.96%	0.86%
March 2009	62.52%	29.40%	1.73%	2.73%	2.94%	0.80%
February 2009	64.43%	27.85%	1.52%	2.59%	2.95%	0.69%
January 2009	65.41%	27.03%	1.38%	2.57%	2.92%	0.67%
December 2008	67.84%	25.23%	1.21%	2.41%	2.83%	0.60%
November 2008	68.14%	25.27%	0.93%	2.49%	3.01%
October 2008	67.68%	25.54%	1.02%	2.91%	2.69%
September 2008	67.16%	25.77%	1.03%	3.00%	2.86%
August 2008	68.91%	26.08%		2.99%	1.83%
July 2008	68.57%	26.14%		3.30%	1.78%

StatCounter Mobile

**Mobile browser stats from StatCounter**
Date	Opera Mini	iPhone	Nokia browser	Android	Black Berry	Other
2011-04	21.90%	17.43%	16.32%	15.49%	13.37%	15.50%
2011-03	21.03%	18.18%	15.95%	15.27%	13.93%	15.64%
2011-02	21.15%	18.08%	15.77%	14.70%	14.35%	15.95%
2011-01	21.04%	18.17%	15.52%	14.19%	14.85%	16.24%
2010-12	20.11%	17.50%	15.68%	13.23%	17.87%	15.61%
2010-11	21.85%	16.55%	16.65%	11.27%	19.05%	14.63%
2010-10	24.53%	16.82%	16.44%	10.33%	17.96%	13.92%
2010-09	24.82%	16.90%	16.77%	9.48%	17.66%	14.38%
2010-08	23.52%	18.20%	16.30%	8.95%	16.70%	16.32%
2010-07	23.55%	17.93%	16.50%	8.32%	16.19%	17.51%
2010-06	25.89%	18.05%	15.98%	6.84%	14.68%	18.56%
2010-05	26.68%	19.97%	14.69%	6.30%	13.78%	18.59%
2010-04	26.14%	20.18%	15.52%	6.18%	13.67%	18.31%
2010-03	26.10%	20.56%	16.45%	5.84%	12.31%	18.73%
2010-02	25.00%	22.51%	16.99%	5.35%	10.67%	19.47%
2010-01	25.53%	21.52%	18.53%	4.54%	9.85%	20.02%
2009-12	26.39%	21.89%	18.98%	4.06%	9.27%	19.38%
2009-11	26.57%	22.14%	19.32%	3.31%	9.37%	19.27%
2009-10	26.92%	21.22%	20.84%	2.56%	8.79%	19.67%
2009-09	26.49%	21.58%	20.43%	2.32%	8.53%	20.64%
2009-08	25.47%	22.76%	18.68%	2.28%	8.45%	22.37%
2009-07	24.90%	22.27%	18.71%	2.21%	8.45%	23.46%
2009-06	25.79%	21.95%	18.49%	0.13%	7.92%	25.73%
2009-05	24.64%	22.37%	17.90%	1.86%	6.92%	26.31%
2009-04	21.08%	24.31%	16.77%	2.02%	6.39%	29.44%
2009-03	21.45%	24.22%	17.95%	2.18%	5.97%	28.23%
2009-02	23.15%	23.26%	18.25%	2.06%	5.57%	27.71%
2009-01	24.69%	23.06%	17.78%	1.92%	4.91%	27.63%
2008-12	26.51%	21.68%	17.96%	1.70%	4.71%	27.43%

StatCounter Europe (July 2008 to present)

**European stats from StatCounter (Top 5 browsers)**
Date	Firefox	Internet Explorer	Chrome	Opera	Safari
April 2011	36.84%	35.27%	18.14%	4.22%	4.93%
March 2011	37.12%	35.92%	17.19%	4.31%	4.88%
February 2011	37.56%	36.44%	16.28%	4.27%	4.87%
January 2011	37.92%	36.91%	15.47%	4.23%	4.91%
December 2010	38.11%	37.52%	14.58%	4.57%	4.62%
November 2010	38.50%	38.91%	13.09%	4.27%	4.64%
October 2010	38.66%	39.52%	12.29%	4.39%	4.55%
September 2010	38.97%	40.26%	11.32%	4.48%	4.32%
August 2010	37.94%	42.01%	10.81%	4.33%	4.11%
July 2010	37.98%	42.61%	10.13%	4.55%	3.89%
June 2010	38.09%	43.18%	9.60%	4.40%	3.90%
May 2010	38.61%	43.32%	8.89%	4.41%	3.88%
April 2010	38.72%	44.10%	8.27%	4.15%	3.80%
March 2010	38.28%	45.32%	7.36%	4.32%	3.76%
February 2010	38.99%	45.50%	6.52%	4.29%	3.67%
January 2010	39.86%	44.91%	5.78%	4.33%	3.68%
December 2009	40.80%	44.84%	5.06%	4.44%	3.40%
November 2009	40.12%	46.57%	4.43%	4.27%	3.52%
October 2009	39.87%	47.78%	3.99%	4.05%	3.37%
September 2009	39.26%	46.44%	3.59%	6.64%	3.14%
August 2009	39.62%	46.01%	3.36%	7.12%	2.95%
July 2009	39.70%	46.69%	3.05%	6.84%	2.81%
June 2009	38.79%	45.97%	2.78%	8.69%	2.64%
May 2009	38.59%	46.65%	2.49%	8.75%	2.52%
April 2009	39.04%	47.89%	2.05%	7.63%	2.53%
March 2009	38.54%	49.13%	1.73%	7.34%	2.43%
February 2009	37.69%	50.29%	1.49%	7.29%	2.38%
January 2009	37.71%	50.48%	1.38%	7.25%	2.30%
December 2008	36.70%	51.84%	1.25%	7.35%	2.25%
November 2008	33.74%	55.08%	0.91%	7.77%	2.30%
October 2008	33.41%	56.52%	0.98%	6.38%	2.52%
September 2008	33.77%	56.35%	1.04%	6.20%	2.45%
August 2008	35.53%	58.31%		3.49%	2.47%
July 2008	35.52%	58.19%		3.69%	2.37%

Net Applications (2004 Q4 to present)

Netapplications bases its usage share on statistics from 40,000 websites having around 160 million unique visitors.

On 1 August 2009, Net Applications began weighting its raw data based on the number of internet users in the countries concerned, using data from the CIA ; the changes were applied retroactively to older data.^[19] The table below uses weighted data from 2007 Q4 onwards, and this is reflected in the summary table above. This has the effect of weighting heavy population centers such as Asia with 4 billion people higher.^[20]

**Global usage share data from: Net Applications**
Period	Internet Explorer	Firefox	Chrome	Safari	Opera	Opera mini	Netscape Navigator
2011 April	55.11%	21.63%	11.94%	7.15%	2.14%	1.11%	0.73%
2011 March	55.92%	21.80%	11.57%	6.61%	2.15%	1.06%	0.68%
2011 February	56.77%	21.74%	10.93%	6.36%	2.15%	1.12%	0.71%

**Global usage share data from: Net Applications**
Period	Internet Explorer	Firefox	Chrome	Safari	Opera	Opera Mini	Netscape	Mozilla
2011 Q1	56.19%	22.11%	11.07%	6.43%	2.20%	1.02%	0.75%	0.03%
2010 Q4	58.27%	22.80%	9.23%	5.59%	2.24%	0.96%	0.67%	0.03%
2010 Q3	60.29%	22.93%	7.53%	5.17%	2.40%	0.88%	0.52%	0.02%
2010 Q2	60.01%	24.24%	7.00%	4.78%	2.33%	0.73%	0.49%	0.12%
2010 Q1	61.43%	24.40%	5.67%	4.55%	2.37%	0.61%	0.52%	0.15%
2009 Q4	63.67%	24.46%	4.04%	4.41%	2.29%	0.45%	0.32%	0.11%
2009 Q3	66.80%	23.06%	2.86%	4.13%	2.07%	0.30%	0.50%	0.09%
2009 Q2	68.06%	23.00%	2.13%	3.67%	2.05%	0.25%	0.68%	0.06%
2009 Q1	69.13%	22.67%	1.56%	3.58%	2.18%	0.23%	0.51%	0.06%
2008 Q4	71.99%	20.78%	1.16%	3.11%	2.15%	0.24%	0.41%	0.07%
2008 Q3	74.93%	19.07%	0.37%	2.73%	2.06%	0.23%	0.43%	0.07%
2008 Q2	76.24%	18.16%		2.73%	1.97%	0.20%	0.48%	0.08%
2008 Q1	77.83%	16.86%		2.65%	1.84%	0.17%	0.41%	0.13%
2007 Q4	79.16%	15.84%		2.39%	1.78%	0.12%	0.50%	0.09%
2007 Q3	78.85%	14.69%		4.80%	0.51%		0.76%	0.11%
2007 Q2	78.76%	14.92%		4.66%	0.46%		0.83%	0.15%
2007 Q1	79.38%	14.35%		4.70%	0.50%		0.77%	0.19%
2006 Q4	80.69%	13.50%		4.06%	0.56%		0.86%	0.23%
2006 Q3	82.88%	11.89%		3.30%	0.62%		0.88%	0.26%
2006 Q2	84.03%	10.67%		3.25%	0.57%		0.98%	0.32%
2006 Q1	85.01%	9.77%		3.10%	0.53%		1.09%	0.36%
2005 Q4	85.88%	9.00%		2.80%	0.54%		1.25%	0.43%
2005 Q3	86.74%	7.97%		2.24%	0.55%		1.92%	0.48%
2005 Q2	87.24%	8.08%		1.89%	0.52%		1.62%	0.59%
2005 Q1	89.02%	6.17%		1.70%	0.49%		1.89%	0.67%
2004 Q4	91.35%	3.66%		1.50%	0.51%		2.09%	0.80%
Period	Internet Explorer	Firefox	Chrome	Safari	Opera	Opera Mini	Netscape	Mozilla

W3Counter (May 2007 to present)

This site counts the last 15,000 page views from each of approximately 45,000 websites. This limits the influence of sites with more than 15,000 visitors on the usage statistics. W3Counter is not affiliated with the W3C.

**Global Web Stats from W3Counter**
Date	Internet Explorer	Firefox	Chrome	Safari	Opera	Other Mozilla
April 2011	37.8%	29.5%	15.7%	6.2%
March 2011	39.3%	30.1%	15.6%	6.0%	2.0%
February 2011	40.2%	30.5%	15.2%	6.0%	2.0%
January 2011	40.0%	31.1%	14.2%	5.9%	2.0%
December 2010	41.3%	30.3%	13.5%	5.9%	2.0%
November 2010	40.1%	30.2%	12.4%	5.7%	1.9%
October 2010	41.6%	29.9%	11.9%	5.5%	1.9%
September 2010	43.3%	30.4%	11.4%	5.5%	1.6%
August 2010	43.2%	31.2%	10.7%	4.2%	1.4%
July 2010	44.4%	31.4%	9.8%	1.9%	2.1%
June 2010	45.5%	31.8%	9.2%	3.5%	2.1%
May 2010	45.7%	32.2%	8.4%	5.3%	2.0%
April 2010	46.9%	31.6%	8.0%	5.4%	2.1%
March 2010	47.9%	32.3%	7.4%	5.5%	2.1%
February 2010	48.7%	32.1%	6.8%	5.6%	2.1%
January 2010	49.7%	32.3%	6.3%	5.4%	2.1%
December 31, 2009	50.3%	32.3%	5.5%	5.1%	2.1%
November 30, 2009	51.2%	32.0%	4.7%	5.2%	1.2%
October 31, 2009	51.3%	32.1%	4.2%	5.1%	2.0%
September 30, 2009	51.8%	31.9%	3.7%	5.0%	2.0%
August 31, 2009	52.4%	32.1%	3.6%	4.9%	1.9%
July 31, 2009	53.1%	31.7%	3.3%	4.6%	1.8%	1.1%
June 30, 2009	57.1%	31.6%		3.2%	2.0%	1.0%
May 31, 2009	57.5%	31.4%		3.1%	2.0%	1.0%
April 30, 2009	57.6%	31.6%		2.9%	2.0%	1.0%
March 31, 2009	57.8%	31.5%		2.8%	2.0%	1.1%
February 28, 2009	58.1%	31.3%		2.7%	2.0%	1.1%
January 31, 2009	58.4%	31.1%		2.7%	2.0%	1.1%
December 31, 2008	58.6%	31.1%		2.9%	2.1%	1.1%
November 30, 2008	59.0%	30.8%		3.0%	2.0%	1.0%
October 31, 2008	59.4%	30.6%		3.0%	2.0%	1.0%
September 30, 2008	57.3%	32.5%		2.7%	2.0%	1.0%
August 31, 2008	58.7%	31.4%		2.4%	2.1%	0.9%
July 31, 2008	60.9%	29.7%		2.4%	2.0%	1.0%
June 30, 2008	61.7%	29.1%		2.5%	2.0%	0.9%
May 31, 2008	61.9%	28.9%		2.7%	2.0%	0.9%
April 30, 2008	62.0%	28.8%		2.8%	2.0%	0.9%
March 31, 2008	62.0%	28.8%		2.8%	2.0%	0.9%
February 29, 2008	62.0%	28.7%		2.8%	2.0%	0.9%
January 31, 2008	62.2%	28.7%		2.7%	2.0%	0.52%
December 1, 2007	62.8%	28.0%		2.6%	2.0%	0.56%
November 10, 2007	63.0%	27.8%		2.5%	2.0%	0.59%
October 30, 2007	65.5%	26.3%		2.3%	1.8%	0.59%
September 20, 2007	66.6%	25.6%		2.1%	1.8%	0.61%
August 30, 2007	66.7%	25.5%		2.1%	1.8%	0.62%
July 30, 2007	66.9%	25.1%		2.2%	1.8%	0.67%
June 30, 2007	66.9%	25.1%		2.3%	1.8%	0.70%
May 30, 2007	67.1%	24.8%		2.4%	1.8%	0.68%
Date	Internet Explorer	Firefox	Chrome	Safari	Opera	Other Mozilla

StatOwl.com (September 2008 to present)

**USA usage share data from StatOwl.com**
Period	Internet Explorer	Mozilla, Firefox	Chrome	Safari	Opera	Gecko	Netscape Navigator
April 2011	57.08%	21.40%	10.85%	9.47%	0.53%
March 2011	60.27%	19.57%	9.60%	9.62%	0.42%
February 2011	60.92%	19.21%	9.13%	9.59%	0.4%	0.42%
January 2011	61.28%	19.57%	8.8%	9.4%	0.39%	0.31%
December 2010	60.98%	20.14%	8.61%	9.33%	0.40%	0.24%
November 2010	62.13%	19.69%	7.46%	9.42%	0.37%	0.18%
October 2010	62.54%	19.76%	7.17%	9.03%	0.36%	0.15%
September 2010	62.68%	20.51%	6.99%	8.83%	0.36%	0.15%
August 2010	62.66%	20.94%	6.83%	8.83%	0.35%	0.14%
July 2010	61.73%	21.66%	6.95%	8.94%	0.36%	0.11%
June 2010	63.37%	21.26%	6.24%	8.52%	0.33%
May 2010	64.17%	21.12%	5.59%	8.31%	0.37%
April 2010	64.55%	21.35%	5.23%	8.12%	0.40%
March 2010	66.34%	19.90%	4.39%	8.59%	0.31%
February 2010	66.99%	19.48%	3.98%	9.00%	0.24%	0.06%
January 2010	66.33%	20.31%	3.87%	8.94%	0.26%	0.06%
December 2009	66.12%	20.82%	3.51%	8.73%	0.30%	0.07%
November 2009	67.74%	20.15%	2.88%	8.56%	0.28%	0.10%
October 2009	68.38%	20.32%	2.56%	8.09%	0.27%	0.14%
September 2009	67.25%	21.12%	2.41%	8.46%	0.28%	0.21%
August 2009	68.37%	21.32%	2.21%	7.29%	0.28%	0.23%
July 2009	69.29%	21.06%	2.05%	6.77%	0.30%	0.24%
June 2009	71.44%	19.48%	1.93%	6.30%	0.33%	0.22%
May 2009	71.35%	20.26%	1.64%	5.95%	0.31%	0.21%
April 2009	71.38%	20.46%	1.43%	5.80%	0.31%	0.19%
March 2009	72.03%	20.00%	1.19%	5.91%	0.30%		0.10%
February 2009	74.04%	18.64%	0.97%	5.57%	0.27%		0.10%
January 2009	73.05%	19.39%	0.96%	5.72%	0.29%		0.12%
December 2008	70.89%	20.87%	0.95%	6.32%	0.33%		0.13%
November 2008	72.07%	19.78%	0.68%	6.57%	0.29%		0.13%
October 2008	73.45%	18.88%	0.57%	6.22%	0.26%		0.16%
September 2008	74.53%	18.14%	0.52%	5.98%	0.22%		0.17%

92% of sites monitored by StatOwl serve predominantly United States market.^[21]

Clicky (Late September 2009 to present)

**Global usage share data from GetClicky.com**
Period	Internet Explorer	Firefox	Chrome	Safari	Opera	Mozilla
April 2011	44.21%	28.08%	17.21%	9.17%	1.22%	0.11%
March 2011	44.91%	28.26%	16.30%	9.18%	1.24%	0.12%
February 2011	44.99%	28.61%	16.03%	8.92%	1.32%	0.12%
January 2011	46.00%	28.74%	15.25%	8.62%	1.27%	0.12%
December 2010	47.31%	28.75%	14.13%	8.32%	1.34%	0.13%
November 2010	47.74%	28.89%	13.03%	8.97%	1.22%	0.13%
October 2010	47.74%	29.67%	12.69%	8.46%	1.26%	0.16%
September 2010	48.37%	29.95%	11.82%	8.43%	1.24%	0.17%
August 2010	48.23%	30.82%	11.22%	8.24%	1.31%	0.16%
July 2010	49.26%	30.88%	10.53%	7.87%	1.26%	0.18%
June 2010	49.44%	31.16%	10.30%	7.64%	1.25%	0.20%
May 2010	49.03%	32.12%	9.53%	7.73%	1.34%	0.24%
April 2010	48.90%	32.73%	8.94%	7.81%	1.39%	0.22%
March 2010	49.91%	32.37%	8.20%	7.89%	1.40%	0.21%
February 2010	49.92%	32.80%	7.54%	8.09%	1.41%	0.23%
January 2010	50.71%	32.89%	6.85%	7.79%	1.51%	0.23%
December 2009	50.87%	33.40%	6.17%	7.70%	1.58%	0.25%
November 2009	52.21%	32.97%	5.15%	7.80%	1.55%	0.31%
October 2009	53.10%	32.71%	4.66%	7.68%	1.45%	0.37%
September 2009	54.58%	31.96%	4.25%	7.44%	1.34%	0.41%

Wikimedia (April 2009 to present)

Wikimedia traffic analysis reports are based on server logs of about 4 billion page requests per month, based on the user agent information that accompanied the requests.^[22] These server logs cover requests to all the Wikimedia Foundation projects, including Wikipedia, Wikimedia Commons, Wiktionary, Wikibooks, Wikiquote, Wikisource, Wikinews, Wikiversity and others.^[23]

**Usage share data from Wikimedia visitor log analysis report**
Period	Internet Explorer	Firefox	Chrome	Safari			Opera			Android	Mobile
Period	Internet Explorer	Firefox	Chrome	Desktop	Mobile	Total	Desktop	Mobile	Total	Android	Other	Total
March 2011	41.27%	27.05%	13.52%	5.61%	3.57%	9.18%	3.45%	0.70%	4.15%	0.99%	1.34%	6.60%
February 2011	41.66%	27.63%	12.58%	5.54%	3.68%	9.22%	3.52%	0.71%	4.23%	0.98%	1.39%	6.80%
January 2011	41.56%	28.71%	11.75%	5.53%	3.73%	9.26%	3.55%	0.70%	4.25%	0.90%	1.57%	6.90%

**Usage share data from Wikimedia visitor log analysis report**
Period	Internet Explorer	Firefox	Chrome	Safari	Opera	Mozilla	Mobile
March 2011	41.27%	27.05%	13.52%	5.61%	3.45%	0.49%	6.6%
February 2011	41.66%	27.63%	12.58%	5.54%	3.52%	0.51%	6.8%
January 2011	41.56%	28.71%	11.75%	5.53%	3.55%	0.49%	6.9%
December 2010	42.12%	28.82%	11.18%	5.70%	3.67%	0.52%	6.4%
November 2010	44.46%	29.17%	10.29%	5.61%	3.37%	0.53%	4.9%
October 2010	44.72%	29.67%	9.71%	5.57%	3.48%	0.53%	4.7%
September 2010	46.45%	29.33%	9.00%	5.49%	3.19%	0.54%	4.5%
August 2010	47.22%	29.49%	8.36%	5.31%	2.88%	0.59%	4.6%
July 2010	47.74%	30.43%	7.52%	5.18%	2.89%	0.53%	4.5%
June 2010	47.50%	30.90%	7.39%	4.95%	3.43%	0.59%	3.9%
May 2010	48.25%	30.87%	6.93%	4.99%	3.46%	0.62%	3.5%
April 2010	48.96%	30.84%	6.37%	5.09%	3.40%	0.69%	3.3%
March 2010	50.43%	30.44%	5.75%	5.14%	3.30%	0.62%	3.0%
February 2010	50.29%	30.96%	5.28%	5.27%	3.29%	0.60%	3.0%
January 2010	51.01%	30.85%	4.81%	5.13%	3.18%	0.56%	3.1%
December 2009	52.24%	30.45%	4.34%	5.14%	3.08%	0.57%	3.0%
November 2009	54.43%	29.96%	3.73%	4.96%	2.82%	0.63%	2.3%
October 2009	54.72%	30.17%	3.41%	4.82%	2.76%	0.65%	2.2%
September 2009	55.77%	29.78%	3.12%	4.72%	2.62%	0.67%	2.2%
August 2009	55.60%	30.25%	2.97%	4.57%	2.97%	0.71%	2.3%
July 2009	54.55%	31.52%	2.77%	4.51%	2.38%	0.70%	2.4%
June 2009	56.35%	30.82%	2.45%	4.04%	2.61%	0.64%	2.1%
May 2009	57.30%	30.43%	2.28%	3.76%	2.65%	0.66%	2.0%
April 2009	57.37%	30.71%	1.93%	3.86%	2.57%	0.68%	1.9%

Older reports

TheCounter.com (2000 to 2009)

TheCounter.com identifies sixteen versions of six browsers (Internet Explorer, Firefox, Safari, Opera, Netscape, and Konqueror). Other browsers are categorised as either ‘Netscape compatible’ (including Google Chrome, which may also be categorized as 'Safari' due to its 'Webkit' subtag) or ‘unknown’. Internet Explorer 8 is identified as Internet Explorer 7. Monthly data includes all hits from 2008-02-01 until the end of the month concerned. More than the exact browser type, this data identifies the underlying web rendering engine used by various browsers, and the table below aggregates them in the same column.

**Global usage share data from TheCounter.com (global statistics)**
Period	Internet Explorer	Netscape, Mozilla, Firefox	Safari	Opera	Netscape Navigator	Sources
2009 Q4	66.42%	21.13%	10.05%	1.00%	0.05%	Oct, Nov, Dec
2009 Q3	69.07%	20.59%	8.10%	0.89%	0.06%	Jul, Aug, Sep
2009 Q2	70.31%	20.12%	6.44%	0.94%	0.06%	Apr, May, Jun
2009 Q1	71.25%	20.01%	5.47%	0.92%	0.08%	Jan, Feb, Mar
2008 Q4	74.24%	18.66%	4.52%	0.89%	0.07%	Oct, Nov, Dec
2008 Q3	76.33%	17.97%	3.76%	0.84%	0.07%	Jul, Aug, Sep
2008 Q2	78.30%	16.36%	3.41%	0.81%	0.06%	Apr, May, Jun
2008 Q1	78.80%	15.87%	3.32%	0.79%	0.06%	Jan, Feb, Mar
2007 Q4	81.14%	13.81%	3.21%	0.67%	0.06%	Oct, Nov, Dec
2007 Q3	81.63%	13.49%	3.00%	0.66%	0.06%	Jul, Aug, Sep
2007 Q2	82.97%	12.41%	2.87%	0.64%	0.06%	Apr, May, Jun
2007 Q1	83.69%	11.57%	2.92%	0.57%	0.06%	Jan, Feb, Mar
2006 Q4	84.11%	11.13%	2.80%	0.60%	0.05%	Nov, Dec
2006 Q3	84.48%	10.56%	2.27%	0.73%	0.06%	Jul, Aug, Sep
2006 Q2	86.32%	9.03%	1.89%	0.70%	0.05%	Apr, May, Jun
2006 Q1	90.01%	6.77%	1.40%	0.58%	0.05%	Jan, Feb, Mar
2005 Q4	87.25%	8.60%	1.83%	0.71%	0.07%	Oct, Nov, Dec
2005 Q3	87.58%	8.42%	1.60%	0.67%	0.07%	Jul, Aug, Sep
2005 Q2	90.90%	6.02%	0.99%	0.51%	0.09%	Apr, May, Jun
2005 Q1	90.77%	5.73%	1.00%	0.54%	0.11%	Jan, Feb, Mar
2004 Q4	90.98%	5.10%	0.77%	0.68%	0.18%	Oct, Nov, Dec
2004 Q3	92.70%	3.57%	0.73%	0.65%	0.20%	Jul, Aug, Sep
2004 Q2	95.04%	2.37%	0.67%	0.51%	0.32%	Apr, May, Jun
2004 Q1	94.28%	2.70%		0.52%	0.36%	Jan, Feb, Mar
2003 Q4						Oct, Nov, Dec
2003 Q3						Jul, Aug, Sep
2003 Q2	94.43%	2.22%		0.66%	1.45%	Apr, May, Jun
2003 Q1	94.18%	2.15%		0.65%	1.77%	Jan, Feb, Mar
2002 Q4	93.94%	1.67%		0.83%	2.31%	Oct, Nov, Dec
2002 Q3	93.32%	1.36%		0.94%	3.04%	Jul, Aug, Sep
2002 Q2	92.47%	1.13%		0.82%	4.13%	Apr, May, Jun
2002 Q1	92.40%	0.93%		0.52%	4.67%	Jan, Feb, Mar
2001 Q4	90.83%	0.71%		0.36%	5.23%	Oct, Nov, Dec
2001 Q3	88.43%	0.26%		0.31%	6.49%	Jul, Aug, Sep
2001 Q2	87.99%	0.27%		0.28%	7.46%	Apr, May, Jun
2001 Q1	86.80%	0.30%		0.22%	9.84%	Jan, Feb, Mar
2000 Q4	83.95%	0.14%		0.14%	12.61%	Oct, Nov, Dec
2000 Q3	82.76%	0.04%		0.14%	14.35%	Jul, Aug, Sep
2000 Q2	80.30%	0.02%		0.12%	17.54%	Apr, May, Jun
2000 Q1	79.09%	0.00%		0.13%	19.25%	Jan, Feb, Mar
Period	Internet Explorer	Netscape, Mozilla, Firefox	Safari	Opera	Netscape Navigator	Sources

OneStat.com (2002-04 to 2009-03)

**Global usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla, Firefox	Safari	Chrome	Opera	Netscape	Netscape Navigator
March 2009	79.59%	15.59%	2.65%	0.86%	0.54%	0.31%
November 2008	81.36%	14.67%	2.42%	0.54%	0.55%	0.32%
February 2008	83.27%	13.76%	2.18%		0.55%	0.14%
June 2007	84.66%	12.72%	1.79%		0.61%	0.11%
January 2007	85.81%	11.69%	1.64%		0.58%	0.13%
November 2006	85.24%	12.15%	1.61%		0.69%	0.11%
October 2006	85.85%	11.49%	1.61%		0.69%	0.12%
July 2006	83.05%	12.93%	1.84%		1.00%	0.16%
May 2006	85.17%	11.79%	2.02%		0.79%	0.15%
January 2006	85.82%	11.23%	1.88%		0.77%	0.16%
November 2005	85.45%	11.51%	1.75%		0.77%	0.26%
April 2005	86.63%	8.69%	1.26%		1.03%	1.08%
February 2005	87.28%	8.45%	1.21%		1.09%	1.11%
November 2004	88.90%	7.35%	0.91%		1.33%
May 2004	93.9 %	2.1 %	0.71%		1.02%
January 2004	94.8 %	1.8 %	0.48%		0.8 %
July 2003	95.4 %	1.6 %	0.25%		0.6 %	1.9 %	0.6 %
February 2003	95.2 %	1.2 %	0.11%		0.7 %	1.9 %	1.0 %
December 2002	95.0 %	1.1 %			0.8 %	1.9 %	1.1 %
September 2002	94.9 %	0.8 %			0.9 %	1.8 %	1.2 %
June 2002	95.3 %	0.4 %			0.7 %	1.5 %	1.9 %
April 2002	96.6 %				0.5 %	0.7 %	2.1 %

**USA usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla, Firefox	Safari	Chrome	Opera	Netscape
March 2009	72.69%	20.40%	4.53%	1.05%	0.38%	0.49%
November 2008	75.54%	18.74%	3.95%	0.62%	0.39%	0.50%
June 2007	75.69%	19.65%	3.77%		0.61%	0.17%
January 2007	78.13%	16.11%	3.68%		0.73%	0.18%

**Canadian usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla, Firefox	Safari	Chrome	Opera	Netscape
March 2009	65.55%	23.09%	7.36%	1.32%	0.75%	0.56%
November 2008	69.67%	20.38%	7.56%	0.92%	0.76%	0.56%
June 2007	75.76%	16.47%	5.72%		0.69%	0.13%
January 2007	79.00%	14.13%	4.70%		0.71%	0.14%

**UK usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla, Firefox	Safari	Chrome	Opera	Netscape
March 2009	80.91%	15.16%	1.94%	0.85%	0.60%	0.36%
November 2008	83.77%	11.45%	1.76%	0.43%	0.60%	0.34%
June 2007	86.00%	11.22%	1.61%		0.53%	0.10%
January 2007	86.72%	10.86%	1.78%		0.49%	0.10%

**Australian usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla, Firefox	Safari	Chrome	Opera	Netscape
June 2007	66.42%	26.32%	1.86%		4.05%	0.24%
January 2007	65.71%	26.68%	1.77%		4.28%	0.24%

**French usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla, Firefox	Safari	Chrome	Opera	Netscape
March 2009	71.57%	23.48%	2.90%	0.86%	0.54%	0.46%
November 2008	71.50%	23.45%	3.23%	0.59%	0.56%	0.51%

ADTECH (Europe, 2004 to 2009-Q4)

**Europe usage share data from ADTECH (press releases)**
Period	Internet Explorer	Firefox	Safari	Chrome	Opera	Mozilla	Netscape
Q4 2009	63.6%	26.7%	3.6%	2.8%	1.7%	0.7%
Q1 2009	67.7%	25.3%	2.6%	1.0%	1.4%	1.1%
Q1 2008	76.2%	18.1%	1.7%		1.0%	2.6%
Q4 2007	76.0%	18.0%	1.6%		1.0%	2.9%
July 2007	77.5%	15.5%	1.6%		0.9%	3.9%
February 2007	77.34%	14.34%	1.63%		0.85%	5.11%
February–April 2006	83.36%	12.38%	1.67%		0.77%	0.82%	0.38%
September 2005	83.31%	12.41%	1.40%		0.90%	1.06%	0.61%
June 2005	85.10%	10.11%	1.34%		1.21%	1.05%	0.60%
March 2005	86.73%	8.96%			1.12%	1.14%	0.71%
February 2005	87.57%	7.85%			1.05%	1.26%	0.76%
January 2005	87.13%	7.43%			1.70%	1.33%	0.85%
November 30, 2004	89.47%	5.51%			1.01%	2.50%	0.92%
November 16, 2004	90.56%	4.56%			1.07%	2.38%	0.89%
September 2004	92.63%	2.91%			1.00%	2.10%	0.82%
August 2004	93.08%	2.15%			0.89%	2.18%	0.95%
July 2004	93.08%	1.64%			0.99%	2.62%	0.97%
January–April 2004	94.72%				0.73%	2.50%	1.49%

AT Internet Institute (Europe, 2007-07 to 2010-06)

AT Internet Institute was formerly known as XiTi.

Method: Only counts visits to local sites in 23 European countries and then averages the percentages for those 23 European countries independent of population size.

**Europe usage share data from AT Internet Institute (browsers barometer)**
Date	Internet Explorer	Netscape	Firefox	Opera	Safari	Chrome	Source
June 2010	53.8%		30.6%	2.4%	6.8%	5.7%	2010-6
March 2010	57.1%		29.6%	2.2%	5.2%	5.3%	2010-3
September 2009	62.0%		28.4%	2.2%	4.3%	2.8%	2009-11
April 2009	63.6%	0.6%	28.4%	2.2%	3.4%	1.7%	2009-5
March 2009	64.6%	0.6%	27.8%	2.2%	3.3%	1.4%
February 2009	65.6%	0.5%	27.4%	2.1%	3.0%	1.3%
January 2009	58.1%	0.6%	32.5%	4.1%	3.0%	1.5%	2009-1
December 2008	58.5%	0.6%	32.3%	4.5%	2.7%	1.3%	2009-1
November 2008	59.5%	0.6%	31.1%	5.1%	2.5%	1.1%	2008-12-22
October 2008	59.2%	0.6%	31.1%	5.4%	2.4%	1.1%	2008-12-22
September 2008	60.2%	0.4%	31.2%	4.8%	2.4%	1.0%	2008-10-10
August 2008	59.4%	0.3%	33.0%	4.5%	2.6%
July 2008	60.4%	0.3%	32.2%	4.5%	2.4%
June 2008	60.5%	0.3%	31.4%	5.1%	2.5%
May 2008	61.7%	0.4%	30.7%	4.7%	2.4%
April 2008	64.5%	0.5%	28.9%	3.6%	2.4%
March 2008	65.0%	0.5%	28.8%	3.3%	2.3%		2008-04-30
February 2008	65.6%	0.5%	28.5%	3.2%	2.2%
January 2008	66.1%	0.5%	28.0%	3.2%	2.1%
December 2007	66.1%	0.5%	28.0%	3.3%	2.0%
November 2007	66.9%	0.5%	27.3%	3.2%	1.9%
October 2007	67.5%	0.4%	27.0%	3.1%	1.8%
September 2007	66.6%	0.3%	27.7%	3.4%	1.8%		2007-10-30
July 2–8, 2007	66.5%	0.3%	27.8%	3.5%	1.7%		2007-07-18

WebSideStory (USA, 1999-02 to 2006-06)

**USA usage share data from: WebSideStory**
Date	Internet Explorer	Netscape, Mozilla	Firefox	Source
June 2006	86.64%		9.95%	July 19, 2006
January 5, 2006	87.63%		8.88%	Jan. 12, 2006
November 4, 2005	88.16%	1.61%	8.13%	November 10, 2005
September 23, 2005	88.46%	1.69%	7.86%	September 27, 2005
April 29, 2005	88.86%	2.23%	6.75%	May 10, 2005
February 18, 2005	89.85%	2.47%	5.69%	Feb. 28, 2005
January 14, 2005	90.28%	2.64%	4.95%
December 3, 2004	91.80%	2.83%	4.06%
November 5, 2004	92.89%	2.95%	3.03%
October 8, 2004	93.21%	3.05%	2.66%	December 13, 2004
June 4, 2004	95.48%	3.53%		December 13, 2004
August 26, 2002	95.97%	3.39%		August 28, 2002
October 25, 2001	89.03%	10.47%		October 31, 2001
April 25, 2001	86.61%	13.10%		May 1, 2001
February 21, 2001	87.71%	12.01%		February 22, 2001
June 18, 2000	86.08%	13.90%		February 22, 2001
August 2, 1999	75.31%	24.68%		August 9, 1999
April 6, 1999	68.75%	29.46%		April 7, 1999
March 1, 1999	66.90%	31.21%		March 2, 1999
February 8, 1999	64.60%	33.43%		February 22, 2001

GVU WWW user survey (1994-01 to 1998-10)

Usage share data from: GVU WWW user survey
Date	Mosaic	Netscape Navigator	Internet Explorer	Source
October 1998		64%	32.2%	Primary Browser in 12 Months
April 1998		70%	22.7%	Browser Expected to Use in 12 Months
October 1997		59.67%	15.13%	Browser Expected to Use in 12 Months
April 1997		81.13%	12.13%	Browser Expected to Use in 12 Months
October 1996		80.45%	12.18%	Browser Expected to Use in 12 Months
April 1996		89.36%	3.76%	Browser Expected to Use in 12 Months
April 1995	9%	54%		Hal Berghel's Cybernautica - "A Web Monopoly"
October 1994	68%	18%		Result Graph - Browser
January 1994	97%			General Results Graphs

EWS Web Server at UIUC (1996 Q2 to 1998)

**Usage share data from: EWS Web Server at UIUC**
Date	Mosaic	Internet Explorer	Netscape Navigator	Source
1998 Q4		50.43%	46.87%	Oct 1998, Nov 1998, Dec 1998
1998 Q3		47.90%	48.97%	Jul 1998, Aug 1998, Sep 1998
1998 Q2		43.17%	53.57%	Apr 1998, May 1998, Jun 1998
1998 Q1		39.67%	57.63%	Jan 1998, Feb 1998, Mar 1998
1997 Q4		35.53%	62.23%	Oct 1997, Nov 1997, Dec 1997
1997 Q3		32.40%	64.93%	Jul 1997, Aug 1997, Sep 1997
1997 Q2	0.37%	27.67%	69.77%	Apr 1997, May 1997, Jun 1997
1997 Q1	0.60%	22.87%	74.33%	Jan 1997, Feb 1997, Mar 1997
1996 Q4	1.20%	19.07%	77.13%	Oct 1996, Nov 1996, Dec 1996
1996 Q3	2.47%	13.97%	80.37%	Jul 1996, Aug 1996, Sep 1996
1996 Q2	6.93%	9.60%	82.77%	Apr 1996, May 1996, Jun 1996

ZD Market Intelligence (USA, 1997-01 to 1998-01)

**Usage share data from: ZD Market Intelligence**
Date	Internet Explorer	Netscape Navigator	Source
January 1998	39%	54%	Behind the numbers: Browser market share
January 1997	21%	63%	Behind the numbers: Browser market share

Zona Research (USA, 1997-01 to 1998-07)

**Usage share data from: Zona Research**
Date	Internet Explorer	Netscape Navigator	Source
July 1998	45%	54%	Behind the numbers: Browser market share
September 1997	36%	62%
January 1997	28%	70%

AdKnowledge (1998-01 to 1998-06)

**Usage share data from: AdKnowledge**
Date	Internet Explorer	Netscape Navigator	Source
June 1998	46%	52%	Behind the numbers: Browser market share
March 1998	42%	57%
January 1998	36%	61%

Dataquest (1995 to 1997)

**Usage share data from: Dataquest**
Date	Internet Explorer	Netscape Navigator	Source
1997	39.4%	57.6%	Browser wars: High price, huge rewards
1996	20%	73%
1995	2.9%	80.1%

International Data Corporation (US, 1996 to 1997)

**Usage share data from: International Data Corporation**
Date	Internet Explorer	Netscape Navigator	Source
1997	23%	51%	Behind the numbers: Browser market share
1996	16%	55%	Behind the numbers: Browser market share

References

^ Metz, Cade (26 June 2008). "AVG disguises fake traffic as IE6". The Register. Retrieved 12 January 2011.
^ Keizer, Gregg (23 June 2008). "Firefox 3.0 boosts Mozilla's market share". Computerworld. IDG. Retrieved 12 January 2011.
^ Cacycle (7 June 2010). "Using Firefox 1.5 caching". Mozilla. Retrieved 3 February 2010.
^ Pettersen, Yngve Nysæter (27 February 2007). "Introducing Cache Contexts, or: Why the browser does not know you are logged out". My Opera. Opera Software. Retrieved 12 January 2011.
^ ^a ^b Sharovatov, Vitaly (3 June 2008). "HTTP History Lists and Back Button". WordPress. Retrieved 3 February 2010.
^ Butcher, Mike (21 September 2007). "Vodafone in mobile web storm". TechCrunch Europe. Retrieved 12 January 2011.
^ "Stat Counter - China". Statcounter. Retrieved 12 January 2011.
^ "Stat Counter - South Korea". Statcounter. Retrieved 12 January 2011.
^ "Stat Counter - Germany". Statcounter. Retrieved 12 January 2011.
^ "Stat Counter - Indonesia". Statcounter. Retrieved 12 January 2011.
^ "Stat Counter - Belarus". Statcounter. Retrieved 6 April 2011.
^ "Stat Counter - Ukraine". Statcounter. Retrieved 6 April 2011.
^ "Stat Counter - Tunisia". Statcounter. Retrieved 6 April 2011.
^ "Stat Counter - Albania". Statcounter. Retrieved 6 April 2011.
^ "Stat Counter - Europe". Statcounter. Retrieved 6 April 2011.
^ Olson, Parmy (5 January 2011). "Google Gobbles Internet Explorer's Market Share With Chrome". Forbes. Retrieved 12 January 2011.
^ "Statcounter statistics methodoly". StatCounter. Retrieved 12 January 2011.
^ "Top 5 Browsers in Europe from July 2008 to January 2011". StatCounter. Retrieved 2 Febuary 2011. {{cite web}}: Check date values in: |accessdate= (help)
^ "Country Level Weighting". Net Applications. 1 August 2009. Retrieved 12 January 2011.
^ http://www.worldatlas.com/geoquiz/thelist.htm
^ "About Our Data". Statowl.com. Retrieved 12 January 2011.
^ Zachte, Erik (15 February 2011). "Wikimedia Traffic Analysis Report - Browsers e.a." Retrieved 4 March 2011.
^ Zachte, Erik (15 February 2011). "Wikimedia Traffic Analysis Report - Requests by destination". Retrieved 4 March 2011.

External links

Chuck Upsdell's Browser Stats lists web stats from many different stats sources and gives the approximate current usage share of the most popular layout engines.
W3Schools' Browser Statistics lists the web stats only from the W3 Schools site, which gives the approximate usage share of browsers among "people with an interest for web technologies."

[Opera-17] Opera: NetApp and Wikimedia include Opera Mini.

[wikimedia-18] Wikimedia: Safari and Opera numbers include mobile, so the mobile number is counted twice.

[1] Metz, Cade (26 June 2008). "AVG disguises fake traffic as IE6". The Register. Retrieved 12 January 2011.

[2] Keizer, Gregg (23 June 2008). "Firefox 3.0 boosts Mozilla's market share". Computerworld. IDG. Retrieved 12 January 2011.

[3] Cacycle (7 June 2010). "Using Firefox 1.5 caching". Mozilla. Retrieved 3 February 2010.

[4] Pettersen, Yngve Nysæter (27 February 2007). "Introducing Cache Contexts, or: Why the browser does not know you are logged out". My Opera. Opera Software. Retrieved 12 January 2011.

[HTTP_History_Lists_and_Back_Button-5] Sharovatov, Vitaly (3 June 2008). "HTTP History Lists and Back Button". WordPress. Retrieved 3 February 2010.

[6] Butcher, Mike (21 September 2007). "Vodafone in mobile web storm". TechCrunch Europe. Retrieved 12 January 2011.

[7] "Stat Counter - China". Statcounter. Retrieved 12 January 2011.

[8] "Stat Counter - South Korea". Statcounter. Retrieved 12 January 2011.

[9] "Stat Counter - Germany". Statcounter. Retrieved 12 January 2011.

[10] "Stat Counter - Indonesia". Statcounter. Retrieved 12 January 2011.

[11] "Stat Counter - Belarus". Statcounter. Retrieved 6 April 2011.

[12] "Stat Counter - Ukraine". Statcounter. Retrieved 6 April 2011.

[13] "Stat Counter - Tunisia". Statcounter. Retrieved 6 April 2011.

[14] "Stat Counter - Albania". Statcounter. Retrieved 6 April 2011.

[15] "Stat Counter - Europe". Statcounter. Retrieved 6 April 2011.

[16] Olson, Parmy (5 January 2011). "Google Gobbles Internet Explorer's Market Share With Chrome". Forbes. Retrieved 12 January 2011.

[19] "Statcounter statistics methodoly". StatCounter. Retrieved 12 January 2011.

[20] "Top 5 Browsers in Europe from July 2008 to January 2011". StatCounter. Retrieved 2 Febuary 2011. {{cite web}}: Check date values in: |accessdate= (help)

[21] "Country Level Weighting". Net Applications. 1 August 2009. Retrieved 12 January 2011.

[22] ttp://www.worldatlas.com/geoquiz/thelist.htm

[23] "About Our Data". Statowl.com. Retrieved 12 January 2011.

[wikimedia-example-24] Zachte, Erik (15 February 2011). "Wikimedia Traffic Analysis Report - Browsers e.a." Retrieved 4 March 2011.

[25] Zachte, Erik (15 February 2011). "Wikimedia Traffic Analysis Report - Requests by destination". Retrieved 4 March 2011.

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