Audit of site load speed

Free site audit!

We will check your site for 50 indicators! After the end of the test, you will receive a report with all the data and recommendations for improvement.

Test result

Verification date: 02.02.2018

Site: facebook.com

92 %
PageSpeed Score
77 %
YSlow Score
3.8 s
Fully Loaded Time
708Kb
Total Page Size
41
Requests

Report

recommendation grade value type priority
Avoid a character set in the meta tag
100 CONTENT LOW
Avoid bad requests
100 CONTENT HIGH
Avoid CSS @import
100 CSS MEDIUM
Avoid landing page redirects
100 SERVER HIGH
Combine images using CSS sprites
100 IMAGES HIGH
Defer parsing of JavaScript
71 JS HIGH
Enable gzip compression
100 SERVER HIGH
Enable Keep-Alive
100 SERVER HIGH
Inline small CSS
100 CSS HIGH
Inline small JavaScript
100 JS HIGH
Leverage browser caching
100 SERVER HIGH
Minify CSS
99 CSS HIGH
Minify HTML
99 CONTENT LOW
Minify JavaScript
99 JS HIGH
Minimize redirects
67 CONTENT HIGH
Minimize request size
100 CONTENT HIGH
Optimize images
99 IMAGES HIGH
Optimize the order of styles and scripts
100 CSS/JS HIGH
Prefer asynchronous resources
100 JS MEDIUM
Put CSS in the document head
100 CSS HIGH
Remove query strings from static resources
97 CONTENT LOW
Serve resources from a consistent URL
100 CONTENT HIGH
Serve scaled images
99 IMAGES HIGH
Specify a cache validator
100 SERVER HIGH
Specify a character set early
100 CONTENT MEDIUM
Specify a Vary: Accept-Encoding header
100 SERVER LOW
Specify image dimensions
99 IMAGES MEDIUM
recommendation grade value type priority
Add Expires headers
78 SERVER HIGH
Avoid AlphaImageLoader filter
100 CSS MEDIUM
Avoid CSS expressions
100 CSS LOW
Avoid HTTP 404 (Not Found) error
100 CONTENT MEDIUM
Avoid URL redirects
50 CONTENT MEDIUM
Compress components with gzip
100 SERVER HIGH
Configure entity tags (ETags)
100 SERVER LOW
Make AJAX cacheable
100 JS MEDIUM
Make favicon small and cacheable
100 IMAGES LOW
Make fewer HTTP requests
20 CONTENT HIGH
Make JavaScript and CSS external
0 CSS/JS MEDIUM
Minify JavaScript and CSS
100 CSS/JS MEDIUM
Reduce cookie size
100 COOKIE LOW
Reduce DNS lookups
75 CONTENT LOW
Reduce the number of DOM elements
100 CONTENT LOW
Remove duplicate JavaScript and CSS
100 CSS/JS MEDIUM
Use a Content Delivery Network (CDN)
0 SERVER MEDIUM
Use cookie-free domains
95 COOKIE LOW
Use GET for AJAX requests
100 JS LOW
110 ms
Redirect
This is the time spent redirecting URLs before the final HTML page is loaded.
76 ms
Connect
Once any redirects have completed, Connection duration is measured. This is the time spent connecting to the server to make the request to the page.
138 ms
Backend
Once the connection is complete and the request is made, the server needs to generate a response for the page. The time it takes to generate the response is known as the Backend duration.
324 ms
TTFB
Time to First Byte (TTFB) is the total amount of time spent to receive the first byte of the response once it has been requested.
1.3 s
DOM int.
DOM interactive time is the point at which the browser has finished loading and parsing HTML, and the DOM (Document Object Model) has been built.
1.6 s
DOM loaded
DOM content loaded time (DOM loaded or DOM ready for short) is the point at which the DOM is ready (ie. DOM interactive) and there are no stylesheets blocking JavaScript execution.
1 ms
(DOM loaded)
The time spent executing JavaScript triggered by the DOM content loaded event. Many JavaScript frameworks use this event as a starting point to begin execution of their code.
1.8 s
First paint
First paint time is the first point at which the browser does any sort of rendering on the page.
0 s
Contentful paint
First Contentful Paint is triggered when any content is painted - i.e. something defined in the DOM (Document Object Model). This could be text, an image or canvas render.
3.7 s
Onload
Onload time occurs when the processing of the page is complete and all the resources on the page (images, CSS, etc.) have finished downloading.
27 ms
(Onload)
The time spent executing JavaScript triggered by the Onload event.
Help
Above average
Below average
92% Excellent!
75% Medium, there is something to improve
55% Bad, need improvement

Facts

Google

Got a traffic drop of 20% because the search results page started loading 0.5 seconds longer.
Internet store

It risks losing half the visitors if the site is loaded for longer than 3 seconds.
American Airlines

The airline removed the olive from the lunch of business class passengers and saved 40 thousand dollars a year.

Why is it necessary to accelerate the loading of the site?

It would seem, what difference will the site load in 10 seconds or in 3 seconds? But the difference is huge!

  • The most famous reseach
    The company Amazon conducted a reseach and  found that the delay of only 0.1 seconds reduces revenue by 1%!
  • Search engines
    In Google Analitycs there is a tool - "Speed ​​of loading pages". This function allows you to monitor the speed with which the site is downloaded from users. The better the speed, the more robots visit the site.
  • Positions in the search
    The faster the pages of the site open, the more "like" the search engines and they increase the site in the issuance.
  • Conversion
    Site load speed is important for sites that need sales and conversions. A visitor simply does not make an order if he is annoyed by a slow site.
  • Mobile devices
    Today the share of visitors from mobile devices is 50% and this figure is growing. Obviously, for such users, the speed of loading the page is important and they will not tolerate a slow site, but will leave to competitors.
  • Reduced server load
    The less the load on the server, the more visitors can get to the site without increasing the hosting plan

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