Pub.dev - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
73% 
Page structure
68% 
Link structure
91% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.36 s
File size
33.10 kB
Words
588
Media files
43
Number of links
55 internal / 23 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
The official repository for Dart and Flutter packages.
The length of the page title is perfect. (464 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Pub is the package manager for the Dart programming language, containing reusable libraries & packages for Flutter and general Dart programs.
The length of the meta description is perfect. (891 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://pub.dev/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
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, initial-scale=1
descriptionPub is the package manager for the Dart programming language, containing reusable libraries & packages for Flutter and general Dart programs.
langen-us
twitter:cardsummary
twitter:site@dart_lang
twitter:descriptionPub is the package manager for the Dart programming language, containing reusable libraries & packages for Flutter and general Dart programs.
twitter:imagehttps://pub.dev/static/hash-44kmit6u/img/pub-dev-icon-cover-image.png
og:typewebsite
og:site_nameDart packages
og:titleThe official repository for Dart and Flutter packages.
og:descriptionPub is the package manager for the Dart programming language, containing reusable libraries & packages for Flutter and general Dart programs.
og:imagehttps://pub.dev/static/hash-44kmit6u/img/pub-dev-icon-cover-image.png
og:urlhttps://pub.dev/
x-ua-compatibleie=edge
charsetutf-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
This page contains 588 words. That's ok.
25% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
13 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 14.28 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 12 tags for this page.
Image SEO
(Somewhat important)
12 images have no alt attribute. The content of alt attributes is used by search engines.
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
...4kmit6u/img/nav-mobile-foldable-icon.svgtoggle folding of the section
...4kmit6u/img/nav-mobile-foldable-icon.svgtoggle folding of the section
...4kmit6u/img/nav-mobile-foldable-icon.svgtoggle folding of the section
/static/hash-44kmit6u/img/pub-dev-logo.svgNo alt attribute provided
...-44kmit6u/img/supported-by-google-2x.pngSupported by Google
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
/static/hash-44kmit6u/img/landing-01.webpNo alt attribute provided
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
/static/hash-44kmit6u/img/landing-02.webpNo alt attribute provided
/static/hash-44kmit6u/img/landing-03.webpNo alt attribute provided
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...-44kmit6u/img/material-icon-verified.svgverified publisherPublished by a pub.dev verified publisher
...i.ytimg.com/vi/Jxw6FaA0j3I/hqdefault.jpgvideo_player (Package of the Week)
...c/hash-44kmit6u/img/youtube-play-red.pngNo alt attribute provided
...hash-44kmit6u/img/youtube-play-black.pngNo alt attribute provided
...i.ytimg.com/vi/sjPSx6-iCao/hqdefault.jpgMix (Package of the Week)
...c/hash-44kmit6u/img/youtube-play-red.pngNo alt attribute provided
...hash-44kmit6u/img/youtube-play-black.pngNo alt attribute provided
...i.ytimg.com/vi/8Vzv2CdbEY0/hqdefault.jpggoogle_fonts (Package of the Week)
...c/hash-44kmit6u/img/youtube-play-red.pngNo alt attribute provided
...hash-44kmit6u/img/youtube-play-black.pngNo alt attribute provided
...i.ytimg.com/vi/sa_U0jffQII/hqdefault.jpgshared_preferences (Package of the Week)
...c/hash-44kmit6u/img/youtube-play-red.pngNo alt attribute provided
...hash-44kmit6u/img/youtube-play-black.pngNo alt attribute provided
/static/hash-44kmit6u/img/rss-feed-icon.svgRSSRSS/atom feed
...h-44kmit6u/img/bug-report-white-96px.pngbug reportReport an issue with this site

Page structure

H1 heading
(Critically important)
Flutter Favorites
Too many H1 headings
The H1 heading is too short (17 characters). It should be at least 20 Characters long.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Flutter Favorites
H1 Most popular packages
H1 Top Flutter packages
H1 Top Dart packages
H1 Package of the Week
H2 pub.dev package manager
H3 pub.dev
H3 Flutter
H3 Dart
H3 pub.dev toggle folding of the section
H3 Flutter toggle folding of the section
H3 Dart toggle folding of the section
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 23 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://pub.dev/help/searchNew window Searching for packages
https://pub.dev/help/scoringNew window Package scoring and pub points
https://flutter.dev/using-pack...New window External Using packages
https://flutter.dev/developing...New window External Developing packages and plugins
https://dart.dev/tools/pub/pub...New window External Publishing a package
https://dart.dev/guides/packagesNew window External Text duplicate Using packages
https://dart.dev/tools/pub/pub...New window External Text duplicate Publishing a package
https://pub.dev/help/searchNew window Text duplicate Searching for packages
https://pub.dev/help/scoringNew window Text duplicate Package scoring and pub points
https://flutter.dev/using-pack...New window External Text duplicate Using packages
https://flutter.dev/developing...New window External Text duplicate Developing packages and plugins
https://dart.dev/tools/pub/pub...New window External Text duplicate Publishing a package
https://dart.dev/guides/packagesNew window External Text duplicate Using packages
https://dart.dev/tools/pub/pub...New window External Text duplicate Publishing a package
https://dart.dev/New window External Dart
https://flutter.dev/New window External Flutter
https://flutter.dev/docs/devel...New window External highest levels of quality
/packages/connectivity_plusconnectivity_plus
/publishers/fluttercommunity.devfluttercommunity.dev
/packages/built_collectionbuilt_collection
/publishers/google.devgoogle.dev
/packages/flutter_animateflutter_animate
/publishers/gskinner.comgskinner.com
https://pub.dev/packages/freezedfreezed
/publishers/dash-overflow.netdash-overflow.net
/packages?q=is:flutter-favoriteNofollow View all
A-TITLE Search Flutter Favorites packages
/packages/web_socket_channelweb_socket_channel
/publishers/tools.dart.devtools.dart.dev
https://pub.dev/packages/xmlxml
/publishers/lukas-renggli.chlukas-renggli.ch
/packages/node_preamblenode_preamble
/packages/frontend_server_clientfrontend_server_client
/publishers/tools.dart.devText duplicate tools.dart.dev
https://pub.dev/packages/test_apitest_api
/publishers/tools.dart.devText duplicate tools.dart.dev
https://pub.dev/packages/filefile
/publishers/tools.dart.devText duplicate tools.dart.dev
/packages?sort=downloadsNofollow Text duplicate View all
A-TITLE Search popular packages
/packages/permission_handlerpermission_handler
/publishers/baseflow.combaseflow.com
/packages/octo_imageocto_image
/publishers/baseflow.comText duplicate baseflow.com
/packages/in_app_purchasein_app_purchase
/publishers/flutter.devflutter.dev
/packages/firebase_corefirebase_core
/publishers/firebase.google.comfirebase.google.com
https://pub.dev/packages/cameracamera
/publishers/flutter.devText duplicate flutter.dev
/packages/pretty_dio_loggerpretty_dio_logger
/publishers/codeness.lycodeness.ly
/packages?q=sdk:flutterNofollow Text duplicate View all
A-TITLE Search Flutter packages
https://pub.dev/packages/mocktailmocktail
/publishers/felangel.devfelangel.dev
https://pub.dev/packages/oauth2oauth2
/publishers/tools.dart.devText duplicate tools.dart.dev
/packages/mason_climason_cli
/publishers/brickhub.devbrickhub.dev
/packages/pretty_dio_loggerText duplicate pretty_dio_logger
/publishers/codeness.lyText duplicate codeness.ly
/packages/mqtt_clientmqtt_client
/publishers/darticulate.comdarticulate.com
https://pub.dev/packages/cli_utilcli_util
/publishers/tools.dart.devText duplicate tools.dart.dev
/packages?q=sdk:dartNofollow Text duplicate View all
A-TITLE Search Dart packages
https://youtube.com/watch?v=Jx...New window External IMG-ALT video_player (Package of the Week)
A-TITLE Display a video from the internet, or the user's device, in your Flutter app in a few lines of code with the video_player package.
https://youtube.com/watch?v=sj...New window External IMG-ALT Mix (Package of the Week)
A-TITLE Use the Mix package to style plain widgets in your Flutter apps.
https://youtube.com/watch?v=8V...New window External IMG-ALT google_fonts (Package of the Week)
A-TITLE Learn more about google_fonts → https://goo.gle/37Q0zJB
https://youtube.com/watch?v=sa...New window External IMG-ALT shared_preferences (Package of the Week)
A-TITLE Learn more about shared_preferences → https://goo.gle/3LJQITK
https://www.youtube.com/playli...New window Nofollow External Subdomain View playlist
A-TITLE Visit the YouTube playlist
https://dart.dev/External Dart language
https://pub.dev/policyPolicy
https://www.google.com/intl/en...External Subdomain Terms
https://developers.google.com/...External Subdomain API Terms
https://pub.dev/securitySecurity
https://www.google.com/intl/en...External Subdomain Privacy
https://pub.dev/helpHelp
https://pub.dev/feed.atomIMG-ALT RSS
https://github.com/dart-lang/p...External IMG-ALT bug report

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://pub.dev/"
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.36 seconds.
The file size of the HTML document is fine (33 kB).

HTTP Response Header

NameValue
dateSat, 17 May 2025 16:48:37 GMT
content-typetext/html; charset="utf-8"
varyAccept-Encoding
x-powered-byDart with package:shelf
cache-controlno-store, no-cache, must-revalidate
strict-transport-securitymax-age=31536000; preload
referrer-policyno-referrer-when-downgrade
x-frame-optionsdeny
x-xss-protection1; mode=block
x-content-type-optionsnosniff
content-security-policydefault-src 'self' https:;font-src 'self' data: https://fonts.googleapis.com/ https://fonts.gstatic.com/;img-src 'self' https: data:;manifest-src 'none';object-src 'none';script-src 'self' https://tagmanager.google.com https://www.googletagmanager.com/ https://www.google.com/ https://www.google-analytics.com/ https://ssl.google-analytics.com https://adservice.google.com/ https://ajax.googleapis.com/ https://apis.google.com/ https://unpkg.com/ https://www.gstatic.com/ https://gstatic.com https://accounts.google.com/gsi/client;style-src 'self' https://unpkg.com/ https://pub.dartlang.org/static/ 'unsafe-inline' https://fonts.googleapis.com/ https://gstatic.com https://www.gstatic.com/ https://tagmanager.google.com https://accounts.google.com/gsi/style
expiresSat, 17 May 2025 16:43:37 GMT
x-appengine-flex-applatency0.004
content-encodinggzip
via1.1 google
alt-svch3=":443"; ma=2592000,h3-29=":443"; ma=2592000
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 1,718 referring domains.
This page has 94,837 backlinks.
This page has backlinks from 1,338 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Sitemap: https://pub.dev/sitemap.txt
Sitemap: https://pub.dev/sitemap-2.txt
Disallow: /packages?q=

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pub.dev
The official repository for Dart and Flutter packages.
Pub is the package manager for the Dart programming language, containing reusable libraries & packages for Flutter and general Dart programs.

Most important keywords

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

KeywordResultRecheck
Flutter76%Check
pub72%Check
Dart66%Check
packages65%Check
dev58%Check
Flutter plugin56%Check
package manager55%Check
Package Repository53%Check
top packages53%Check
manager50%Check
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