information-retrieval.de

Tasks

Select one version of your site as main and make a redirect from other versions to that one.
Avoid using deprecated HTML tags.
Implement the viewport meta tag.

SEO

URL

Domain : www.information-retrieval.de/

Character length : 29

Title

Information Retrieval

Keywords (meta keywords)

Good! The website does not use “meta keywords”.

Open Graph Protocol

Error! The website does not use the OG (Open Graph) protocol.

Dublin Core

Dublin Core is not used

Underscores in the URLs

Good! No underscore (_) found in the URLs.

Search engine friendly URLs

Good! The website uses SEO friendly URLs.

Checking the robots.txt file

There is robots.txt file.
https://information-retrieval.de/robots.txt

User-agent	Disallowed for the search engines
*	/cgi-bin/ /files/

Social

Social Engagement

No info found.

Content

Doctype

Missing doctype element

Encoding

Error! The character encoding setting is missing!

Language

Error! No language localization is found.

Title

Information Retrieval

Character length : 21

Good! The title’s length is between 10 and 70 characters.

Text / HTML ratio

Ratio : 52%

Good! The text / code ratio is between 25 and 70 percent.

Headings

H1	H2	H3	H4	H5	H6
0	1	0	0	0	0

Heading structure in the source code

<H2> information-retrieval.de

Word cloud

buch4
retrieval3
ferber3
information3
reginald3
seiten3
thema3
vorlesungsskripten2
korrekturen2
web-version2
buchs2
dpunkt2
angaben2
texten2
autors2

Keyword matrix

word	title	descriptions	heading
buch
retrieval
ferber
information
reginald
seiten

Two Word cloud

reginald ferber2
die vorlesungsskripten2

404 Page

The website has a 404 error page.

Flash content

Good! The website does not have any flash contents.

Frame

Good! The website does not use iFrame solutions.

Images

We found 4 images on this web page.

Alternate attributes for the following 3 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.

http://www.information-retrieval.de/irb/gifnav/go.gif (2 occurrences)

Technologies

Deprecated HTML elements

Error! Deprecated HTML tags are used on this webpage. You should improve your website.

Deprecated HTML tags	Occurrences
<BIG>	3

Redirection (www / not www)

Error! The web address is accessible with and without www!

Deprecated HTML elements

Error! Deprecated HTML tags are used on this webpage. You should improve your website.

Deprecated HTML tags	Occurrences
<BIG>	3

Printability

Suggestion! Unfortunately, no printer-friendly CSS found.

Meta Tag (viewport tag, mobile devices)

Error! The meta tag named viewport is missing.

Speed test

Server response time

The server response time is fast enough.

Table layout

Error! Avoid using nested tables!

Render blocking resources

Good! No render blocking elements found!

Speed test – Javascript

Javascript

Good! Just a few javascript files are detected on the website.

File size of all javascript files combined

0.00

Javascript minifying

Great! The Javascript files are minified.

Speed test – CSS

CSS

Good! Just a few CSS files are used on this website.

File size of all css files combined

0.00

CSS minifying

Great! The CSS elements are minified.

Speed test – Compression

Uncompressed size of the of the HTML

0.00

Gzip compression

Your site uses compression.

Speed test – Browser cache

Browser cache

The browser cache is set correctly for all elements.

Speed test – Images

File size of all images combined

0.00

Image optimisation

All images are optimized.

Links

We found a total of 10 different links.
Internal links: 10

External links:

Link text (anchor)	Link strength

Internal links:

Link text (anchor)	Link strength
Das Buch
Liste mit Korrekturen
Die Web-Seiten
Die Homepage des Autors
Buch
Korrekturen zum Buch
Web-Version
Home
Reginald Ferber
Reginald Ferber

Website security

95.142.78.237

External hidden links

Good! No hidden external links found

Looking for eval()

Good! No eval(bas64_decode()) scripts are found

Checking for XSS vulnerability

No XSS vulnerability found

Email encryption

Good! We have not found any unencrypted email addresses.

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Icons

Favicon

Error! No favicon is found. Using favicon helps to build a better brand quicker.

Typos

nformation-retrieval.de, iunformation-retrieval.de, unformation-retrieval.de, ijnformation-retrieval.de, jnformation-retrieval.de, information-retrieval.de, nformation-retrieval.de, ilnformation-retrieval.de, lnformation-retrieval.de, ionformation-retrieval.de, onformation-retrieval.de, i8nformation-retrieval.de, 8nformation-retrieval.de, i9nformation-retrieval.de, 9nformation-retrieval.de, i*nformation-retrieval.de, *nformation-retrieval.de, iformation-retrieval.de, inbformation-retrieval.de, ibformation-retrieval.de, ingformation-retrieval.de, igformation-retrieval.de, inhformation-retrieval.de, ihformation-retrieval.de, injformation-retrieval.de, ijformation-retrieval.de, inmformation-retrieval.de, imformation-retrieval.de, in formation-retrieval.de, i formation-retrieval.de, inormation-retrieval.de, infcormation-retrieval.de, incormation-retrieval.de, infdormation-retrieval.de, indormation-retrieval.de, infeormation-retrieval.de, ineormation-retrieval.de, infrormation-retrieval.de, inrormation-retrieval.de, inftormation-retrieval.de, intormation-retrieval.de, infgormation-retrieval.de, ingormation-retrieval.de, infbormation-retrieval.de, inbormation-retrieval.de, infvormation-retrieval.de, invormation-retrieval.de, infrmation-retrieval.de, infoirmation-retrieval.de, infirmation-retrieval.de, infokrmation-retrieval.de, infkrmation-retrieval.de, infolrmation-retrieval.de, inflrmation-retrieval.de, information-retrieval.de, infrmation-retrieval.de, infoprmation-retrieval.de, infprmation-retrieval.de, info9rmation-retrieval.de, inf9rmation-retrieval.de, info0rmation-retrieval.de, inf0rmation-retrieval.de, infomation-retrieval.de, inforemation-retrieval.de, infoemation-retrieval.de, infordmation-retrieval.de, infodmation-retrieval.de, inforfmation-retrieval.de, infofmation-retrieval.de, inforgmation-retrieval.de, infogmation-retrieval.de, infor4,mation-retrieval.de, info4,mation-retrieval.de, infortmation-retrieval.de, infotmation-retrieval.de, infor5mation-retrieval.de, info5mation-retrieval.de, inforation-retrieval.de, informnation-retrieval.de, infornation-retrieval.de, informhation-retrieval.de, inforhation-retrieval.de, information-retrieval.de, inforation-retrieval.de, informjation-retrieval.de, inforjation-retrieval.de, informkation-retrieval.de, inforkation-retrieval.de, informlation-retrieval.de, inforlation-retrieval.de, inform ation-retrieval.de, infor ation-retrieval.de, informtion-retrieval.de, informaqtion-retrieval.de, informqtion-retrieval.de, informawtion-retrieval.de, informwtion-retrieval.de, informaztion-retrieval.de, informztion-retrieval.de, information-retrieval.de, informtion-retrieval.de, informaxtion-retrieval.de, informxtion-retrieval.de, informastion-retrieval.de, informstion-retrieval.de, informaion-retrieval.de, informatrion-retrieval.de, informarion-retrieval.de, informatfion-retrieval.de, informafion-retrieval.de, informatgion-retrieval.de, informagion-retrieval.de, informathion-retrieval.de, informahion-retrieval.de, informatyion-retrieval.de, informayion-retrieval.de, informat5ion-retrieval.de, informa5ion-retrieval.de, informat6ion-retrieval.de, informa6ion-retrieval.de, informaton-retrieval.de, informatiuon-retrieval.de, informatuon-retrieval.de, informatijon-retrieval.de, informatjon-retrieval.de, information-retrieval.de, informaton-retrieval.de, informatilon-retrieval.de, informatlon-retrieval.de, informatioon-retrieval.de, informatoon-retrieval.de, informati8on-retrieval.de, informat8on-retrieval.de, informati9on-retrieval.de, informat9on-retrieval.de, informati*on-retrieval.de, informat*on-retrieval.de, informatin-retrieval.de, informatioin-retrieval.de, informatiin-retrieval.de, informatiokn-retrieval.de, informatikn-retrieval.de, informatioln-retrieval.de, informatiln-retrieval.de, information-retrieval.de, informatin-retrieval.de, informatiopn-retrieval.de, informatipn-retrieval.de, informatio9n-retrieval.de, informati9n-retrieval.de, informatio0n-retrieval.de, informati0n-retrieval.de, informatio-retrieval.de, informationb-retrieval.de, informatiob-retrieval.de, informationg-retrieval.de, informatiog-retrieval.de, informationh-retrieval.de, informatioh-retrieval.de, informationj-retrieval.de, informatioj-retrieval.de, informationm-retrieval.de, informatiom-retrieval.de, information -retrieval.de, informatio -retrieval.de

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SEO report of information-retrieval.de