Codepen.io - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
52% 
Page structure
58% 
Link structure
0% 
Server
77% 
External factors
100% 
SEO Score
Response time
0.90 s
File size
11.40 kB
Words
0
Media files
0
Number of links
0 internal / 0 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
CodePen: Online Code Editor and Front End Web Developer Community
The page title should be shorter than 580 pixels. It is 652 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Build, share, and learn JavaScript, CSS, and HTML with our online code editor.
The length of the meta description is perfect. (486 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width
csrf-paramauthenticity_token
csrf-tokenlIWhcC2Z5T82ULn0GHuosVOyWRDwjy4+Izk1laR22So54ZX8VHju9G0WMb+Dx+S14E+yx52hszUrw19mW9+2vA==
descriptionBuild, share, and learn JavaScript, CSS, and HTML with our online code editor.
keywordsjavascript, css, editor, code, community, social, frontend, developer, designer, deploy, test, demo, spa, single, page, application, web, html, modern, ide, browser, pen, codepen
apple-mobile-web-app-titleCodePen
langen
og:imagehttps://cpwebassets.codepen.io/assets/social/facebook-default-05cf522ae1d4c215ae0f09d866d97413a2204b6c9339c6e7a1b96ab1d4a7340f.png
og:titleCodePen
og:descriptionAn online code editor, learning environment, and community for front-end web development using HTML, CSS and JavaScript code snippets, projects, and web applications.
charsetUTF-8

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Page quality

Content
(Critically important)
There are only 0 words on this page. Use at least 250 words to provide useful information.
Some words from the page title are not used within the pages content
No paragraphs were detected.
No placeholders texts or images were found.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 6 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

No media files were found.

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
There are no headings specified on the page. Headings are important for search engine optimization and help to structure your content.

Heading structure

No headings were found.
This page seems to be an entry page, because only very few links were found.
There are no external links on this page.

Found links on this page

No internal links were found.

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://codepen.io/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time of 0.90 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
The file size of the HTML document is fine (11 kB).

HTTP Response Header

NameValue
dateSat, 21 Sep 2024 16:20:30 GMT
content-typetext/html; charset=utf-8
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block
x-content-type-optionsnosniff
x-download-optionsnoopen
x-permitted-cross-domain-policiesnone
referrer-policystrict-origin-when-cross-origin
content-security-policydefault-src 'self'; base-uri 'self'; block-all-mixed-content; connect-src blob: *; font-src data: *; frame-src data: blob: *; img-src 'self' assets.codepen.io assets.codepen.io cpwebassets.codepen.io shots.codepen.io *.codepen-staging.com *.codepen.website *.codepen.io *.wp.com gravatar.com static.filestackapi.com *.buysellads.net *.buysellads.com *.activemetering.com *.carbonads.net *.doubleclick.net *.adsafeprotected.com secure.adnxs.com segment.prod.bidr.io *.unsplash.com *.googleusercontent.com avatars.githubusercontent.com data: blob:; form-action 'self'; media-src 'self' assets.codepen.io blog.codepen.io assets.codepen.io; object-src 'none'; script-src 'self' 'unsafe-eval' 'nonce-SCiSi98Hn1M=' cpwebassets.codepen.io *.braintreegateway.com *.buysellads.com *.buysellads.net *.carbonads.com *.carbonads.net *.doubleclick.net *.filestackapi.com *.firebaseio.com *.paypal.com *.paypalobjects.com *.stripe.com *.wufoo.com secure.adnxs.com segment.prod.bidr.io wufoo.com www.google.com www.gstatic.com; style-src 'unsafe-inline' *; report-uri /cpe/csp
cache-controlmax-age=0, private, must-revalidate
set-cookie361 Characters
x-request-idd8e0bd5b-ce9a-4c9f-a460-de6d55b96537
x-runtime0.012213
cf-cache-statusDYNAMIC
strict-transport-securitymax-age=31536000; includeSubDomains; preload
servercloudflare
cf-ray8c6b6203ed1f9b95-FRA
content-encodinggzip
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 50,407 referring domains.
This page has 39,760,438 backlinks.
This page has backlinks from 30,246 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Disallow: /boomerang/

Similar sites

Search preview

codepen.io
CodePen: Online Code Editor and Front End Web Developer Community
Build, share, and learn JavaScript, CSS, and HTML with our online code editor.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
code34%Check
code editor29%Check
online code29%Check
Online Code Editor26%Check
online23%Check
editor23%Check
CodePen23%Check
CSS Editor17%Check
Front11%Check
web developer11%Check
Show more keywords and terms

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