Sql-island.informatik.uni-kl.de - SEO Checker

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Overview of the SEO Check
Meta information
59% 
Page quality
67% 
Page structure
60% 
Link structure
77% 
Server
72% 
External factors
100% 
SEO Score
Response time
0.41 s
File size
12.70 kB
Words
385
Media files
3
Number of links
5 internal / 1 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
SQL Island
The page title is too short. (101 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
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: de
Language defined in HTML: de
Server location: United States of America
The following language is defined by HTML: de
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)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
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=1.0
langde
charsetutf-8

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Page quality

Content
(Critically important)
There are only 385 words on this page. Good pages should have about 800 words of useful content.
39.2% 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.
7 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 13.12 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
This page loads 9 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 8 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
/images/wf/logo.pngSQL Island
/images/wf/logo.pngSQL Island
Video URLWidthHeight
https://www.youtube.com/embed/aMmHYE2N5MM1280720

Page structure

H1 heading
(Critically important)
SQL Island
Too many H1 headings
The H1 heading is too short (10 characters). It should be at least 20 Characters long.
Headings
(Important)
Some headings occur twice on the page.

Heading structure

Heading levelContent
H1 SQL Island
H1 SQL Island Duplicate text
H2 Spiel neustarten
H2 Sandbox-Modus
H2 Spiel speichern / laden
H2 Gespeichert
H2 Sprache wechseln
H2 SQL Island Game Trailer
H2 http://www.sql-island.de - SQL Island
H3 Hui, was ist passiert? Es scheint, als habe ich als einziger den Flugzeugabsturz überlebt. Gut, dass ich auf dieser Insel gelandet bin. Hier gibt es ja sogar ein paar Dörfer.
H4 Das bist du!
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
There are too few (5) internal links on this page.
Every linktext is unique.
None of the anchor texts is too long.
There are 1 external links on this page.

Found links on this page

LinkAttributesAnchor text
/cert.phpZertifikat
/?lang=deDeutsch
/?lang=enEnglish
/?lang=ptPortuguês
/?lang=frFrançais
http://wwwlgis.informatik.uni-...External Subdomain Weitere Infos, Impressum, Kontakt und Publikationen

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://sql-island.informatik.uni-kl.de/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time of 0.41 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.
This page loads 5 CSS files. This may affect the page load time negatively.
This page loads 9 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (13 kB).

HTTP Response Header

NameValue
dateSun, 29 Sep 2024 10:51:10 GMT
serverApache/2.4.29 (Ubuntu)
set-cookie44 Characters
expiresThu, 19 Nov 1981 08:52:00 GMT
cache-controlno-store, no-cache, must-revalidate
pragmano-cache
varyAccept-Encoding
content-encodinggzip
content-length4058
content-typetext/html; charset=utf-8
statuscode200
http_versionHTTP/1.1

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 73 referring domains.
This page has 224 backlinks.
This page has backlinks from 67 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: /cert.php

Similar sites

Search preview

sql-island.informatik.uni-kl.de
SQL Island

Most important keywords

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

KeywordResultRecheck
SQL77%Check
Island77%Check
SQL Island75%Check
Info46%Check
Spiel43%Check
Spiel neustarten42%Check
Insel38%Check
neustarten38%Check
speichern38%Check
laden38%Check
Show more keywords and terms

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