1.7 sec in total
599 ms
741 ms
344 ms
Visit dev.man-online.org now to see the best up-to-date Dev Man Online content for United States and also check out these interesting facts you probably never knew about dev.man-online.org
Reference manual for Unix commands and packages.
Visit dev.man-online.orgWe analyzed Dev.man-online.org page load time and found that the first response time was 599 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
dev.man-online.org performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value4.8 s
30/100
25%
Value5.7 s
52/100
10%
Value400 ms
67/100
30%
Value0.069
96/100
15%
Value5.4 s
72/100
10%
599 ms
105 ms
36 ms
24 ms
Our browser made a total of 4 requests to load all elements on the main page. We found that 50% of them (2 requests) were addressed to the original Dev.man-online.org, 25% (1 request) were made to Fonts.googleapis.com and 25% (1 request) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (599 ms) belongs to the original domain Dev.man-online.org.
Page size can be reduced by 3.3 kB (63%)
5.3 kB
1.9 kB
In fact, the total size of Dev.man-online.org main page is 5.3 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. Only 5% of websites need less resources to load. HTML takes 3.4 kB which makes up the majority of the site volume.
Potential reduce by 2.2 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. 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 2.2 kB or 63% of the original size.
Potential reduce by 1.2 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. Dev.man-online.org needs all CSS files to be minified and compressed as it can save up to 1.2 kB or 63% of the original size.
We found no issues to fix!
2
2
The browser has sent 2 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dev Man Online. According to our analytics all requests are already optimized.
dev.man-online.org
599 ms
white.css
105 ms
css
36 ms
2Q-AW1e_taO6pHwMXcXW5w.ttf
24 ms
dev.man-online.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
<frame> or <iframe> elements do not have a title
dev.man-online.org 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
Page has valid source maps
dev.man-online.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
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Page is blocked from indexing
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 Dev.man-online.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 Dev.man-online.org 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.
dev.man-online.org
Open Graph description is not detected on the main page of Dev Man Online. 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: