456 ms in total
155 ms
161 ms
140 ms
Click here to check amazing Semanticlibrary content. Otherwise, check out these important facts you probably never knew about semanticlibrary.net
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Visit semanticlibrary.netWe analyzed Semanticlibrary.net page load time and found that the first response time was 155 ms and then it took 301 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
semanticlibrary.net performance score
name
value
score
weighting
Value4.8 s
12/100
10%
Value8.7 s
1/100
25%
Value10.5 s
7/100
10%
Value0 ms
100/100
30%
Value1.616
0/100
15%
Value4.8 s
79/100
10%
155 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 Semanticlibrary.net and no external sources were called. The less responsive or slowest element that took the longest time to load (155 ms) belongs to the original domain Semanticlibrary.net.
Page size can be reduced by 3 B (4%)
75 B
72 B
In fact, the total size of Semanticlibrary.net main page is 75 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 75 B which makes up the majority of the site volume.
Potential reduce by 3 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. This web page is already compressed.
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.
semanticlibrary.net
155 ms
semanticlibrary.net 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.
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
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
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
semanticlibrary.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
semanticlibrary.net SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Page is blocked from indexing
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
ZH
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Semanticlibrary.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Semanticlibrary.net 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.
semanticlibrary.net
Open Graph description is not detected on the main page of Semanticlibrary. 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: