Duolingo.com - SEO Checker

Overview of the SEO Check
Meta information
57% 
Page quality
52% 
Page structure
58% 
Link structure
0% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.58 s
File size
10.10 kB
Words
0
Media files
0
Number of links
0 internal / 0 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Duolingo
The page title is too short. (81 pixels of 580 max pixel length) Optimize title
The page title is only one word.
There are no duplicate words in the title
Meta description
(Critically important)
Duolingo ist die beliebteste Methode, eine Sprache zu lernen. Es ist 100% kostenlos, wissenschaftlich fundiert und macht Spaß. Übe auf duolingo.com oder mit den Apps!
The meta description is too long: 1046 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.duolingo.com/
There is a valid canonical link specified.
Language
(Somewhat important)
Server location: United States of America
The language is not specified in the HTML markup.
Alternate/Hreflang Links
(Somewhat important)
The specified alternate links have no errors.
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,user-scalable=no
robotsNOODP
apple-mobile-web-app-capableyes
apple-mobile-web-app-status-bar-styleblack
apple-mobile-web-app-titleDuolingo
googlenotranslate
mobile-web-app-capableyes
apple-itunes-appapp-id=570060128
facebook-domain-verificationmwudgypvvgl4fekxjk5rpk3eqg7ykt
keywordslernen, Spanisch, Deutsch, Französisch, Portugiesisch, Italienisch, Englisch, kostenlos, Lektionen, Kurse, Sprache, studieren, Lernkarten
descriptionDuolingo ist die beliebteste Methode, eine Sprache zu lernen. Es ist 100% kostenlos, wissenschaftlich fundiert und macht Spaß. Übe auf duolingo.com oder mit den Apps!
twitter:site@duolingo
twitter:imagehttps://www.duolingo.com/images/facebook/duo200.png
twitter:descriptionSprachen können spielerisch gelernt werden. Dieses Spiel ist zu 100 % kostenlos, macht Spaß und ist wissenschaftlich fundiert.
twitter:titleDuolingo - Kostenloser Sprachunterricht @duolingo
twitter:cardsummary
fb:app_id234536436609303
og:urlhttps://www.duolingo.com/
og:image:height630
og:typewebsite
og:descriptionSprachen können spielerisch gelernt werden. Dieses Spiel ist zu 100 % kostenlos, macht Spaß und ist wissenschaftlich fundiert.
og:image:width1200
og:titleKostenloser Sprachunterricht
og:imagehttps://www.duolingo.com/images/facebook/duo-08523a2.jpg
og:site_nameDuolingo
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.
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,initial-scale=1,user-scalable=no" 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.
No internal links were found.

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.duolingo.com/"
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 0.58 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 (10 kB).

HTTP Response Header

NameValue
dateTue, 22 Oct 2024 20:57:28 GMT
content-typetext/html; charset=UTF-8
set-cookie178 Characters
serverduo-api
no-retry1
surrogate-controlno-store
expires0
pragmano-cache
cache-controlno-store, no-cache, must-revalidate, proxy-revalidate
x-frame-optionsSAMEORIGIN
x-tidffff7f0c6718119400de
x-wsUK
x-runtime0.01503
content-encodinggzip
x-envoy-upstream-service-time20
x-duo-request-hostwww.duolingo.com
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 29,837 referring domains.
This page has 2,718,101 backlinks.
This page has backlinks from 19,957 different ip addresses.

Robots.txt

User-agent: *
Disallow: /sessions/
Disallow: /extend_session/
Disallow: /session_element_solutions/
Disallow: /friendships/
Disallow: /vocabularies/
Disallow: /diagnostics/
Disallow: /skills/
Disallow: /translations/
Disallow: /translation/
Disallow: /contribute/
Disallow: /documents/
Disallow: /matchmaker/
Disallow: /logger/
Disallow: /events/
Disallow: /facebook/
Disallow: /twitter/
Disallow: /words/
Disallow: /translate_jobs/
Disallow: /oauth/
Disallow: /data/
Disallow: /unsubscribe
Disallow: /deactivate
Disallow: /pm/
Disallow: /profile/
Disallow: /register/
Sitemap: https://www.duolingo.com/sitemap_index.xml

# Certain social media sites are added to allow crawlers to access page markup when links to /profile are shared.
User-agent: Twitterbot
Allow: /profile/

User-agent: facebookexternalhit
Allow: /profile/

Search preview

www.duolingo.com
Duolingo
Duolingo ist die beliebteste Methode, eine Sprache zu lernen. Es ist 100% kostenlos, wissenschaftlich fundiert und macht Spaß. Übe auf duolingo.com oder mit den Apps!

Most important keywords

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

KeywordResultRecheck
Duolingo34%Check
beliebteste11%Check
Methode11%Check
Sprache11%Check
lernen11%Check
kostenlos11%Check
wissenschaftlich11%Check
fundiert11%Check
Spaß11%Check
Übe11%Check

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