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Top Technologies

Nginx
Web Servers
Google Tag Manager
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Google Font API
Font Scripts
CloudFlare
CDN
Apache
Web Servers
Font Awesome
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WordPress
CMS
Twitter Bootstrap
Web Frameworks

7 ac-nancy-metz.fr Last Updated: 9 months

Success 39% of passed verification steps
Warning 15% of total warning
Errors 46% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 60%
Best Practices Desktop Score 54%
SEO Desktop Score 80%
Progressive Web App Desktop Score 31%
Performance Mobile Score 27%
Best Practices Mobile Score 54%
SEO Mobile Score 67%
Progressive Web App Mobile Score 30%
Page Authority Authority 0%
Domain Authority Domain Authority 0%
Moz Rank 0.0/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: ISO-8859-1
Title Tag 22 Characters
ACADÉMIE DE NANCY-METZ
Meta Description 0 Characters
NO DATA
Effective URL 28 Characters
http://www.ac-nancy-metz.fr/
Excerpt Page content
Académie de Nancy-Metz ...
Keywords Cloud Density
lire18 suite18 pour14 élèves10 dans9 école7 éducation6 académie6 référentiel6 personnels5
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
lire 18
suite 18
pour 14
élèves 10
dans 9
école 7
éducation 6
académie 6
référentiel 6
personnels 5
Google Preview Your look like this in google search result
ACADÉMIE DE NANCY-METZ
http://www.ac-nancy-metz.fr/
Académie de Nancy-Metz ...
Robots.txt File Detected
Sitemap.xml File No Found
Page Size Code & Text Ratio
Document Size: ~63.74 KB
Code Size: ~50.04 KB
Text Size: ~13.7 KB Ratio: 21.50%

Estimation Traffic and Earnings

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Desktop

Desktop Screenshot
Estimated Input Latency 10 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
Minify CSS Potential savings of 5 KB
Minifying CSS files can reduce network payload sizes
Remove unused CSS Potential savings of 23 KB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Serve images in next-gen formats Potential savings of 7,695 KB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Does not use HTTPS 81 insecure requests found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
Reduce server response times (TTFB) Root document took 600 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 2,060 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 5,331 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 0 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Total Blocking Time 10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 0.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Properly size images Potential savings of 10,327 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 2.8 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 2.1 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).
Avoid enormous network payloads Total size was 12,649 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 1.2 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 2.1 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 3 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 36 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoids an excessive DOM size 532 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Minify JavaScript Potential savings of 2 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 2.1 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 153 requests • 12,649 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 78 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 50 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 2.2 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance

Mobile

Mobile Screenshot
Minify JavaScript Potential savings of 2 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 6.9 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 154 requests • 13,116 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 78 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 230 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 9.1 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Estimated Input Latency 40 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
First Contentful Paint (3G) 13400.5 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Minify CSS Potential savings of 5 KB
Minifying CSS files can reduce network payload sizes
Remove unused CSS Potential savings of 23 KB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Serve images in next-gen formats Potential savings of 7,301 KB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Does not use HTTPS 81 insecure requests found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
Server response times are low (TTFB) Root document took 110 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 6,180 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 5,058 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 120 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Total Blocking Time 420 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 1.5 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Properly size images Potential savings of 8,175 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 7.7 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 6.9 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).
Avoid enormous network payloads Total size was 13,116 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 6.0 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 6.9 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 3 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 36 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoids an excessive DOM size 532 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)

Speed And Optimization Tips

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Alexa Rank

0

Local Rank: / Users: / PageViews:

Global Rank

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/1.1 200 OK
Server: Apache
Content-Type: text/html; charset=ISO-8859-15
Vary: Accept-Encoding
Content-Encoding: gzip
Accept-Ranges: bytes
Connection: Keep-Alive
Date: Thu, 19 Dec 2019 17:31:18 GMT
Age: 1
Content-Length: 21893
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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