Markusroellig.github.io - SEO Checker

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Overview of the SEO Check
Meta information
79% 
Page quality
52% 
Page structure
72% 
Link structure
97% 
Server
100% 
External factors
32% 
SEO Score
Response time
0.23 s
File size
15.40 kB
Words
124
Media files
2
Number of links
9 internal / 19 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
About me - Markus Röllig
The length of the page title is perfect. (229 pixels out of 580 max pixel length)
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)
https://markusroellig.github.io/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
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)
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
HandheldFriendlyTrue
MobileOptimized320
viewportwidth=device-width, initial-scale=1.0
msapplication-TileColor#000000
msapplication-TileImagehttps://markusroellig.github.io/images/mstile-144x144.png?v=M44lzPylqQ
msapplication-confighttps://markusroellig.github.io/images/browserconfig.xml?v=M44lzPylqQ
theme-color#ffffff
langen
og:localeen-US
og:site_nameMarkus Röllig
og:titleAbout me
og:urlhttps://markusroellig.github.io/
og:descriptionAbout me
cleartypeon
charsetutf-8

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Page quality

Content
(Critically important)
There are only 124 words on this page. Use at least 250 words to provide useful information.
Only 1 paragraph/s was/were found on this page.
26.6% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 13.43 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1.0" 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

URLAlt attributeTitle
/images/Foto_M_Roellig.JPGMarkus Röllig
/images/title2-empty.jpgMulti-wavelength star formation and ISM physics

Page structure

H1 heading
(Critically important)
About me
The H1 heading is too short (8 characters). It should be at least 20 Characters long.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 About me
H3 Markus Röllig
There are too few (9) internal links on this page.
Every linktext is unique.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 19 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://markusroellig.github.io/Subdomain Markus Röllig
/research/Subdomain Research
/teaching/Subdomain Teaching
/publications/Subdomain Publications
/software/Subdomain Software
/talks/Subdomain Talks
/cv/Subdomain CV
https://www.researchgate.net/p...External Subdomain ResearchGate
https://twitter.com/MarkusRoelligExternal Twitter
https://github.com/markusroelligExternal Github
https://scholar.google.com/cit...External Subdomain Google Scholar
https://orcid.org/0000-0001-62...External ORCID
https://www.astro.uni-koeln.de/External Subdomain I. Physical Institute
https://www.uni-koeln.de/External Subdomain Cologne University
https://astro.uni-koeln.de/stu...External Subdomain KOSMA workgroup led by Prof. Stutzki
http://www.ccatobservatory.org/External Subdomain CCAT-prime/FYST
https://www.jwst.nasa.gov/External Subdomain JWST
https://www.sofia.usra.edu/External Subdomain SOFIA
https://www.iram-institute.org/External Subdomain IRAM
https://www.cosmos.esa.int/web...External Subdomain Herschel Space Observatory
http://www.apex-telescope.org/ns/External Subdomain APEX
https://astro.uni-koeln.de/obs...External Subdomain NANTEN2
/sitemap/Sitemap
http://github.com/markusroelligExternal GitHub
/feed.xmlSubdomain Feed
http://jekyllrb.com/Nofollow External Jekyll
https://github.com/academicpag...External AcademicPages
https://mademistakes.com/work/...Nofollow External Minimal Mistakes

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://markusroellig.github.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 is excellent with 0.23 seconds.
The file size of the HTML document is fine (15 kB).

HTTP Response Header

NameValue
serverGitHub.com
content-typetext/html; charset=utf-8
permissions-policyinterest-cohort=()
last-modifiedFri, 16 Feb 2024 15:45:48 GMT
access-control-allow-origin*
etagW/"65cf832c-3dbb"
expiresSat, 28 Sep 2024 22:38:33 GMT
cache-controlmax-age=600
content-encodinggzip
x-proxy-cacheMISS
x-github-request-idD8E7:29B81:1CE196B:1DA8CAA:66F88310
accept-rangesbytes
age0
dateSun, 29 Sep 2024 00:12:22 GMT
via1.1 varnish
x-served-bycache-fra-eddf8230133-FRA
x-cacheHIT
x-cache-hits0
x-timerS1727568743.544155,VS0,VE100
varyAccept-Encoding
x-fastly-request-idd310bad85bfacaf6a1c95992ec95956868715713
content-length5345
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page has only a few links from other websites.
This page only has backlinks from 4 referring domains.
This page only has 10 backlinks.
This page only has few backlinks from 4 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

Sitemap: https://markusroellig.github.io/sitemap.xml

Similar sites

Search preview

markusroellig.github.io
About me - Markus Röllig

Most important keywords

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

KeywordResultRecheck
Markus65%Check
Röllig65%Check
Markus Röllig65%Check
Github48%Check
Follow39%Check
physics36%Check
formation36%Check
Senior34%Check
Researcher34%Check
Cologne34%Check
Show more keywords and terms

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