2.2 sec in total
145 ms
2 sec
114 ms
Click here to check amazing Info Britannica content for United States. Otherwise, check out these important facts you probably never knew about info.britannica.com
Visit info.britannica.comWe analyzed Info.britannica.com page load time and found that the first response time was 145 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
info.britannica.com performance score
name
value
score
weighting
Value6.7 s
2/100
10%
Value10.1 s
0/100
25%
Value6.7 s
36/100
10%
Value1,290 ms
18/100
30%
Value0.843
4/100
15%
Value11.6 s
18/100
10%
145 ms
1062 ms
61 ms
86 ms
91 ms
Our browser made a total of 40 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Info.britannica.com, 48% (19 requests) were made to Safe1.britannica.com and 18% (7 requests) were made to Safe.britannica.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Safe1.britannica.com.
Page size can be reduced by 128.7 kB (39%)
328.8 kB
200.1 kB
In fact, the total size of Info.britannica.com main page is 328.8 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. 20% of websites need less resources to load. Javascripts take 171.8 kB which makes up the majority of the site volume.
Potential reduce by 17.4 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 3.1 kB, which is 13% 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 17.4 kB or 76% of the original size.
Potential reduce by 6.2 kB
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. Info Britannica images are well optimized though.
Potential reduce by 101.0 kB
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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 101.0 kB or 59% of the original size.
Potential reduce by 4.1 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. Info.britannica.com needs all CSS files to be minified and compressed as it can save up to 4.1 kB or 78% of the original size.
Number of requests can be reduced by 20 (56%)
36
16
The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Info 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 21 to 1 for JavaScripts and as a result speed up the page load time.
info.britannica.com
145 ms
signup.do
1062 ms
jquery.min.js
61 ms
jquery.cookie.min.js
86 ms
jquery.validate.min.js
91 ms
mbox.js
90 ms
validate.js
87 ms
util.js
109 ms
one-page.js
167 ms
card-addr.js
170 ms
email.js
171 ms
select-billplan.js
172 ms
select-products.js
173 ms
repost.js
189 ms
product-email-card.js
247 ms
mul-promo-code.js
254 ms
mul-select-bill-plan.js
253 ms
mul-new-cust-finish.js
255 ms
init-mul-page.js
260 ms
stats.js
135 ms
reg-web-site.css
269 ms
validation.css
328 ms
socialize.js
225 ms
conversion.js
34 ms
ga.js
71 ms
antarc051p4.jpg
295 ms
athens007p4.jpg
299 ms
apollo032p4.jpg
313 ms
gtm.js
106 ms
DFPAudiencePixel;ord=2113995437975.973;dc_seg=27738730
83 ms
stats.gif
73 ms
FREETRIAL_LANDING_PAGE_INACTIVE.PNG
253 ms
FREETRIAL_LANDING_PAGE_ACTIVE.PNG
258 ms
FREETRIAL_HEADER.PNG
307 ms
FREETRIAL_RISKFREE.PNG
343 ms
sso.htm
72 ms
153 ms
__utm.gif
24 ms
__utm.gif
21 ms
collect
98 ms
info.britannica.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Image elements do not have [alt] attributes
info.britannica.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
info.britannica.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
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
N/A
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Info.britannica.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Info.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.
info.britannica.com
Open Graph description is not detected on the main page of Info Britannica. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: