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Welcome to britannica.com homepage info - get ready to check Britannica best content for United States right away, or after learning these important things about britannica.com
Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.
Visit britannica.comWe analyzed Britannica.com page load time and found that the first response time was 7 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
britannica.com performance score
name
value
score
weighting
Value2.9 s
54/100
10%
Value3.2 s
73/100
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Value16.0 s
0/100
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Value9,730 ms
0/100
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Value0.048
99/100
15%
Value42.2 s
0/100
10%
7 ms
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Our browser made a total of 74 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Britannica.com, 62% (46 requests) were made to Cdn.britannica.com and 4% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (460 ms) relates to the external source Ads.rubiconproject.com.
Page size can be reduced by 99.2 kB (12%)
807.1 kB
707.9 kB
In fact, the total size of Britannica.com main page is 807.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 572.6 kB which makes up the majority of the site volume.
Potential reduce by 95.5 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 20.9 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 95.5 kB or 79% of the original size.
Potential reduce by 659 B
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Britannica images are well optimized though.
Potential reduce by 346 B
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.
Potential reduce by 2.7 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Britannica.com has all CSS files already compressed.
Number of requests can be reduced by 21 (30%)
71
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The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Britannica. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
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britannica.com accessibility score
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
britannica.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
britannica.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Britannica.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Britannica.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
britannica.com
Open Graph data is detected on the main page of Britannica. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: