606 ms in total
239 ms
250 ms
117 ms
Visit covers.openlibrary.org now to see the best up-to-date Covers Openlibrary content for United States and also check out these interesting facts you probably never knew about covers.openlibrary.org
Visit covers.openlibrary.orgWe analyzed Covers.openlibrary.org page load time and found that the first response time was 239 ms and then it took 367 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.
covers.openlibrary.org performance score
name
value
score
weighting
Value0.6 s
100/100
10%
Value0.6 s
100/100
25%
Value0.6 s
100/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value0.6 s
100/100
10%
239 ms
Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Covers.openlibrary.org and no external sources were called. The less responsive or slowest element that took the longest time to load (239 ms) belongs to the original domain Covers.openlibrary.org.
Page size can be reduced by 45 B (23%)
192 B
147 B
In fact, the total size of Covers.openlibrary.org main page is 192 B. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. HTML takes 192 B which makes up the majority of the site volume.
Potential reduce by 45 B
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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 45 B or 23% of the original size.
We found no issues to fix!
0
0
Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.
covers.openlibrary.org
239 ms
covers.openlibrary.org 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
Document doesn't have a <title> element
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
covers.openlibrary.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
covers.openlibrary.org SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Document doesn't have a <title> element
N/A
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Covers.openlibrary.org 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 Covers.openlibrary.org main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
covers.openlibrary.org
Open Graph description is not detected on the main page of Covers Openlibrary. 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: