Jsonlint.com - SEO Checker

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Overview of the SEO Check
Meta information
71% 
Page quality
94% 
Page structure
70% 
Link structure
88% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.20 s
File size
19.20 kB
Words
1046
Media files
1
Number of links
15 internal / 13 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
JSON Online Validator and Formatter - JSON Lint
The length of the page title is perfect. (445 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
JSONLint is the free online validator, json formatter, and json beautifier tool for JSON, a lightweight data-interchange format. You can format json, validate json, with a quick and easy copy+paste.
The meta description is too long: 1195 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Server location: United States of America
The language is not specified in the HTML markup.
Alternate/Hreflang Links
(Somewhat important)
The alternate link to the page itself is missing.
An alternate link incorrectly contains an URL with a relative path.
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
descriptionJSONLint is the free online validator, json formatter, and json beautifier tool for JSON, a lightweight data-interchange format. You can format json, validate json, with a quick and easy copy+paste.
msapplication-TileColor#00aba9
theme-color#ffffff
next-head-count13
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 1046 words. That's ok.
38.9% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
17 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 17.81 words is good.
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 21 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

URLAlt attributeTitle
https://jsonlint.com/images/chrome.svgChrome Logo

Page structure

H1 heading
(Critically important)
JSONLint Validator and Formatter
Too many H1 headings
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 JSONLint Validator and Formatter
H1 To format and validate your JSON, just copy + paste it below:
H2 About the JSONLint Editor
H2 What Is JSON?
H2 Why Use JSON?
H2 Proper JSON Format
H2 Why Use JSONLint Validator and Formatter?
H2 How Does A JSONLint Validator Work?
H2 Tips & Tricks
H2 Common Errors
H2 Different Results
H2 Credits
H2 More tools from JSONLint
H2 Learn more about JSON
H2 Our Friends and Favorites
H3 JSON Datasets
Anchor text is an URL
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
There are 13 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://jsonlint.com/JSONLint Validator and Formatter
/json-formatterIMG-ALT Chrome Logo
/?url=/datasets/programming-la...URL anchor text
https://jsonlint.com/?url=https://jsonlint.com/datasets/programming-languages.json
/?json={"hello": "world"}URL anchor text
https://jsonlint.com/?json=%7B%22hello%22:%20%22world%22%7D
http://www.json.org/External Subdomain JSON's syntax
A-TITLE Visit JSON.org to learn more
http://www.crockford.com/External Subdomain Douglas Crockford
http://zaa.ch/External Zach Carter
https://github.com/zaach/jsonlintExternal pure JavaScript implementation
https://www.github.com/circlec...External Subdomain JSONLint source code on GitHub
https://jsonlint.com/xml-to-jsonXML to JSON
/json-stringifyJSON Stringify
/mastering-json-formatMastering JSON Format: Advantages, Best Practices and Comparison with Other Data Formats
/common-mistakes-in-json-and-h...Common JSON Mistakes and How to Avoid Them
/mastering-json-in-javascriptMastering JSON in JavaScript: Comprehensive Examples and Techniques
/benefits-of-using-a-json-beau...Understanding the Benefits of Using a JSON Beautifier
/how-to-open-json-fileHow to open JSON files
/datasets/us-states-with-detailUS States, Abbreviation, Capital City, Date Founded, and Bordering States
/datasets/programming-languagesProgramming Languages
/datasets/emoticonsEmoticons
https://markdowneditor.org/External Markdown Editor
https://jscompress.com/External JSCompress
https://randomkeygen.com/External RandomKeygen
https://jsoncompare.com/External JSONCompare
https://dns-lookup.com/External DNS-Lookup
https://validatejavascript.com/External ValidateJavaScript
https://colors.to/External Colors.to
https://whatismyip.io/External What is my IP address?
https://jsonlint.com/privacyPrivacy Policy

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://jsonlint.com/"
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.20 seconds.
The file size of the HTML document is fine (19 kB).

HTTP Response Header

NameValue
dateThu, 09 May 2024 00:13:45 GMT
content-typetext/html; charset=utf-8
cf-ray880d7c46a9bf6921-FRA
cf-cache-statusREVALIDATED
cache-controlpublic, max-age=14400, must-revalidate
link</css/style-1.css>; rel=preload; as=style
strict-transport-securitymax-age=63072000
x-matched-path/
x-powered-byNext.js
x-vercel-cacheHIT
x-vercel-idfra1::iad1::2jxs2-1713280116183-93708a7bc92c
report-to{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=qyIJM0ui6jrKM5HNJWqYY9AjpvQYDYHsoKgo5BLLR7OFXCTcmUiKFuq0y0t6gH209ro0nK9xqt6pYV%2Br4tlRocciwOYkpgyX90PlGyYkWnvJCLewpI5yjW9OCh2vUA%3D%3D"}],"group":"cf-nel","max_age":604800}
nel{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
varyAccept-Encoding
servercloudflare
content-encodinggzip
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This website has excellent links from other websites.
This page has backlinks from 3,380 referring domains.
This page has 300,690 backlinks.
This page has backlinks from 2,500 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Disallow: /datasets/

Similar sites

Search preview

jsonlint.com
JSON Online Validator and Formatter - JSON Lint
JSONLint is the free online validator, json formatter, and json beautifier tool for JSON, a lightweight data-interchange format. You can format json, validate json, with a quick and easy copy+paste.

Most important keywords

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

KeywordResultRecheck
lint88%Check
JSON lint84%Check
JSON83%Check
JSON format79%Check
JSONLint77%Check
format77%Check
Validator77%Check
Formatter77%Check
JSONLint Validator77%Check
as JSON67%Check
Show more keywords and terms

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