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SEO Score74/100
Average SEO score of top 100 sites: 75%
Your site scored 74/100, below the 75 average for top sites. We found 13 issues to fix, and clearing them is how you move up.
13 Failed
4 Warnings
41 Passed
Want to fix these issues and track your progress?
Issues to fix
HIGH
To improve the website experience for your visitors, it is recommended to eliminate any render-blocking resources on this webpage.
DetailsHIGH
Using images in a modern format can significantly reduce the file size and improve the loading speed of a webpage, providing a better user experience and potentially increasing engagement.
DetailsHIGH
HTTP/2 protocol offers several key improvements, including faster page load times, improved performance, better security and more efficient use of network resources.
DetailsHIGH
Consider reducing the HTML size to improve loading times and retain visitors.
DetailsHIGH
By creating a custom 404 error page with helpful links and information, users are more likely to stay on the site and continue to explore.
DetailsMEDIUM
JavaScript errors can impact user experience and may prevent users from viewing the page properly.
DetailsMEDIUM
Serve properly sized images to reduce page loading times and to improve user's experience.
DetailsMEDIUM
Avoid using distorted images, as they can have a negative impact on the user experience.
DetailsMEDIUM
Avoid performance and security issues by adding "rel=noopener" or "rel=noreferrer" to your "target=_blank" links.
DetailsLOW
Using more than 20 HTTP requests on a webpage can negatively impact the loading time.
DetailsLOW
Strip out any unnecessary metadata to improve loading time, security, and privacy. Metadata should not exceed 16% of the image size.
DetailsLOW
Consider adding the Strict-Transport-Security header to your webpage to ensure that web traffic is encrypted over HTTPS, mitigating the risk of man-in-the-middle attacks and other security threats.
DetailsCommon SEO issues
Score:74
Failed:3
Warnings:2
Passed:14
Meta Title Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using a title tag.
Meta Description Test
96% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using a meta description tag with a length of 130 characters. We recommend using well-written and inviting meta descriptions with a length between 150 and 220 characters (spaces included).
Desktop version
https://www.telecom-sudparis.eu/
Mobile version
https://www.telecom-sudparis.eu/
There is likely no optimal keyword density (search engine algorithms have evolved beyond keyword density metrics as a significant ranking factor). It can be useful, however, to note which keywords appear most often on your page and if they reflect the intended topic of your page. More importantly, the keywords on your page should appear within natural sounding and grammatically correct copy.
Keywords Usage Test
45% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The most common keywords of this webpage are distributed well across the important HTML tags. This helps search engines to properly identify the topic of this webpage.
accept
accueil
actualités
advertising
allow
apis
apprentissage
après
basse
brochures
campus
cognitifs
comments
contacter
contacts
contenu
cookies
demo
deny
devenez
devenir
diplômantes
diplômes
disallowed
doctorat
doubles
détecter
entreprises
espace
europe
fera
fondateur
fondation
formation
formations
france
functioning
game
generate
google
généraliste
handicap
help
improve
informatique
ingénieur
innovation
install
international
internet
licence
long
légales
main
management
masters
mastère
membre
mentions
mixité
moteurs
necessary
networks
notre
nous
panel
peut
policy
pour
presse
privacy
promotion
proper
recherche
recrutement
relations
remise
réseau
réseaux
santé
service
services
site
soutenir
spécialisé
sudparis
sécurité
technologies
tout
tracks
troubles
télécom
témoignages
used
uses
venir
virtuelle
visite
voir
école
See which keywords rank your URL in Google’s top 20
Get key keyword metrics like average position, search volume, CPC, and more.
Understand your competitors' SEO and backlink profile
Get related competitors and their domain authority score in relation to your domain.
Robots.txt Test
99% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website is using a robots.txt file.
Sitemap Test
74% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website has a sitemap file.
Image Alt Test
71% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using "img" tags with empty or missing "alt" attribute!
Responsive Image Test
28% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Not all images in this webpage are properly sized! This webpage is serving images that are larger than needed for the size of the user's viewport.
Image Aspect Ratio Test
75% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Not all image display dimensions match the natural aspect ratio! Fix aspect ratio issues to avoid distorted images on this website!
Google Analytics Test
65% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using Google Analytics.
Favicon Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website appears to have a favicon.
Get a full and detailed list of your backlinks
See every website linking to yours, along with detailed backlink data.
JS Error Test
79% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
We've found JavaScript errors on this webpage!
Console Errors Test
41% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage doesn't have any warnings or errors caught by the Chrome DevTools Console.
Charset Declaration Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage has a character encoding declaration.
Content-Type: text/html; charset=UTF-8
Speed optimizations
Score:74
Failed:5
Warnings:2
Passed:13
HTML Page Size Test
21% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The size of this webpage's HTML is 42.94 Kb, and is greater than the average size of 33 Kb! This can lead to slower loading times, lost visitors, and decreased revenue. Good steps to reduce HTML size include: using HTML compression, CSS layouts, external style sheets, and moving javascript to external files.
DOM Size Test
54% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The Document Object Model (DOM) of this webpage has 1,354 nodes which is less than the recommended value of 1,500 nodes.
HTML Compression/GZIP Test
97% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is successfully compressed using gzip compression on your code. The HTML code is compressed from 215.31 Kb to 42.94 Kb (80% size savings). This helps ensure a faster loading webpage and improved user experience.
Site Loading Speed Test
66% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The loading time of this webpage (measured from N. Virginia, US) is around 4.53 seconds and this is under the average loading speed which is 5 seconds.
Accurate historical loading speed monitor and reports
Get detailed and accurate loading speed reports for your websites and see how your pages are being loaded over time.
JS Execution Time Test
71% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The JavaScript code used by this webpage is executed in less than 2 seconds.
Page Objects Test
2% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using more than 20 http requests, which can slow down page loading and negatively impact user experience!
Content size by content type
Content type
Percent
Size
image
56.7 %
1.57 Mb
javascript
18.7 %
528.53 Kb
font
15.4 %
436.09 Kb
css
7.7 %
218.73 Kb
html
1.4 %
40.37 Kb
other
0.0 %
782 B
TOTAL
100%
2.76 Mb
Requests by content type
Content type
Percent
Requests
css
47.6 %
68
image
31.5 %
45
javascript
8.4 %
12
font
6.3 %
9
other
5.6 %
8
html
0.7 %
1
TOTAL
100%
143
Content size by domain
Domain
Percent
Size
telecom-sudparis.eu
89.1 %
2.46 Mb
googletagmanager.com
8.5 %
239.84 Kb
netdna.bootstrapcdn.com
1.7 %
47.62 Kb
google-analytics.com
0.7 %
20.99 Kb
google.com
0.0 %
471 B
stats.g.doubleclick.net
0.0 %
357 B
analytics.google.com
0.0 %
226 B
TOTAL
100%
2.76 Mb
Requests by domain
Domain
Percent
Requests
telecom-sudparis.eu
88.8 %
127
stats.g.doubleclick.net
2.8 %
4
googletagmanager.com
2.1 %
3
google-analytics.com
2.1 %
3
netdna.bootstrapcdn.com
1.4 %
2
google.com
1.4 %
2
analytics.google.com
1.4 %
2
TOTAL
100%
143
CDN Usage Test
97% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not serving all resources (images, javascript and css) from CDNs!
Modern Image Format Test
38% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Image Metadata Test
72% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using images with large metadata (more than 16% of the image size)! Stripping out unnecessary metadata tags can improve not only the loading time but also the security and privacy of a webpage.
Image Caching Test
97% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website is using cache headers for images and the browsers will display these images from the cache.
JavaScript Caching Test
95% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using cache headers for all JavaScript resources.
CSS Caching Test
96% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using cache headers for all CSS resources.
JavaScript Minification Test
96% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
All JavaScript files used by this webpage are minified.
CSS Minification Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
All CSS resources used by this webpage are minified.
Render Blocking Resources Test
10% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using render blocking resources! Eliminating render-blocking resources can help this webpage to load significantly faster and will improve the website experience for your visitors.
URL Redirects Test
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).
Time To First Byte Test
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The Time To First Byte value of this webpage is 0.095 seconds. To provide a good user experience, Google recommends that sites should strive to have a TTFB of 0.8 seconds or less.
0.095 s
0.8 s
1.8 s
First Contentful Paint Test
94% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The First Contentful Paint value of this webpage is 1.814 seconds. To provide a good user experience, Google recommends that sites should strive to have a First Contentful Paint value of 1.8 seconds or less.
1.814 s
1.8 s
3 s
Largest Contentful Paint Test
90% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The Largest Contentful Paint duration of this webpage is 2.38 seconds. To provide a good user experience, Google recommends that sites should strive to have Largest Contentful Paint of 2.5 seconds or less.
2.38 s
2.5 s
4 s
Largest Contentful Paint element within the viewport:
<img src="https://www.telecom-sudparis.eu/wp-content/uploads..." width="2000" height="871" alt="" srcset="https://www.telecom-sudparis.eu/wp-content/uploads..." sizes="100vw" decoding="async" fetchpriority="high">
Cumulative Layout Shift Test
94% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The CLS score of this webpage is 0.0647. To provide a good user experience, Google recommends that sites should strive to have a CLS score of 0.1 or less.
0.0647
0.1
0.25
DOM element which contributes the most to CLS score:
Text: Les évènements à ne pas manquer 08 Fév Conférence Assises nationales de la fémi...
Html: <div id="evenements">
Score: 0.0636
Server and security
Score:68
Failed:3
Warnings:0
Passed:4
URL Canonicalization Test
97% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
https://www.telecom-sudparis.eu/ and https://telecom-sudparis.eu/ resolve to the same URL.
SSL Checker and HTTPS Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website is successfully using HTTPS, a secure communication protocol over the Internet.
The certificate is not used before the activation date.
The certificate has not expired.
The hostname "www.telecom-sudparis.eu" is correctly listed in the certificate.
The certificate should be trusted by all major web browsers.
The certificate was not revoked.
The certificate was signed with a secure hash.
Certificate Chain:
Server certificate
Common Name
www.telecom-sudparis.eu
Organization
Institut Mines Telecom
Location
Île-de-France, FR
Subject Alternative Names
www.telecom-sudparis.eu, telecom-sudparis.eu
Not Valid Before
Mon, March 27, 2023 at 12:00:00 AM UTC
Not Valid After
Tue, March 26, 2024 at 11:59:59 PM UTC
Signature Algorithm
sha256WithRsaEncryption
Issuer
Sectigo RSA Organization Validation Secure Server CA
Intermediate certificate
Common Name
Sectigo RSA Organization Validation Secure Server CA
Organization
Sectigo Limited
Location
Salford, Greater Manchester, GB
Not Valid Before
Fri, November 2, 2018 at 12:00:00 AM UTC
Not Valid After
Tue, December 31, 2030 at 11:59:59 PM UTC
Signature Algorithm
sha384WithRsaEncryption
Issuer
USERTrust RSA Certification Authority
Root certificate
Common Name
USERTrust RSA Certification Authority
Organization
The USERTRUST Network
Location
Jersey City, New Jersey, US
Not Valid Before
Mon, February 1, 2010 at 12:00:00 AM UTC
Not Valid After
Mon, January 18, 2038 at 11:59:59 PM UTC
Signature Algorithm
sha384WithRsaEncryption
Issuer
USERTrust RSA Certification Authority
Mixed Content Test (HTTP over HTTPS)
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage does not use mixed content - both the initial HTML and all other resources are loaded over HTTPS.
HTTP2 Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not using the HTTP/2 protocol!
HSTS Test
82% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not using the Strict-Transport-Security header! This is a security header that was created as a way to force the browser to use secure connections when a site is running over HTTPS.
Plaintext Emails Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage does not include email addresses in plaintext.
Unsafe Cross-Origin Links Test
49% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using target="_blank" links without rel="noopener" or rel="noreferrer" attribute, which can expose it to performance and security issues!
Mobile usability
Score:100
Failed:0
Warnings:0
Passed:3
Meta Viewport Test
88% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using a viewport meta tag.
<meta name="viewport" content="width=device-width, initial-scale=1" />Media Query Responsive Test
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using CSS media queries, which is the base for responsive design functionalities.
Advanced SEO
Score:65
Failed:2
Warnings:0
Passed:7
Structured Data Test
53% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using structured data.
Custom 404 Error Page Test
67% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website is not using a custom 404 error page! Default 404 error pages result in a poor experience - it can mislead users into thinking an entire site is down or broken, greatly increases the chance they leave the website entirely, and looks unprofessional. We recommend to have a custom 404 error page in order to improve the website's user experience by letting users know that only a specific page is missing/broken (and not the entire site), providing them helpful links, the opportunity to report bugs, and potentially track the source of broken links.
Meta Refresh Test
96% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not using a meta refresh tag.
SPF Records Test
95% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This DNS server is using an SPF record.
v=spf1 mx include:enst.fr ip4:157.159.0.0/16 ip4:91.103.224.0/21 ip4:83.206.237.128/26 ip4:185.184.12.128/27 ip4:91.109.120.0/24 include:spf.mailjet.com ip6:2001:660:330f:2::c1 include:sendgrid.net ~all
Ads.txt Validation Test
68% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The request of ads.txt file has an unexpected Content-Type header: text/html; charset=UTF-8. In order for this resource to be easily accessed by the DSPs and advertisers, its Content-Type header should be text/plain or text/plain; charset=utf-8.
