SEO report of informatikbuch.de

Redirected to informatikbuch.de/10.Auflage/index.html

Gumm Sommer: Einführung in die Informatik

informatikbuch.de/10.Auflage/index.html

Error! The "meta description" is missing, the page has no summary description!


 Tasks

  • Make the site mobile device friendly.
  • 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.
  • Use "H" tags.

 SEO

URL

Domain : informatikbuch.de/10.Auflage/index.html

Character length : 39

Title
Gumm Sommer: Einführung in die Informatik
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://informatikbuch.de/robots.txt
User-agentDisallowed for the search engines
googlebot
  • All subpages are allowed to crawl


 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
Gumm Sommer: Einführung in die Informatik

Character length : 46

Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 0%

Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Headings
H1H2H3H4H5H6
000000

No "H" tags found

Heading structure in the source code
    Word cloud
      Keyword matrix
      wordtitledescriptionsheading
      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 1 images on this web page.

      Alternate attributes for the following 1 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.

       Technologies

      Mobile optimization
      Error! This website is not optimized for mobile devices... It is optimized for devices which have at least 731px wide display!
      Deprecated HTML elements
      Good! No deprecated HTML tags are detected.
      Redirection (www / not www)
      Error! The web address is accessible with and without www!
      Deprecated HTML elements
      Good! No deprecated HTML tags are detected.
      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.
      Loading time
      391 ms
      Table layout
      Good! No nested tables found.
      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.

       Traffic

      Alexa
      19061996

       Links

      We found a total of 0 different links.

       Website security

      IP
      81.169.145.157
      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.

       Sites on same ip

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       Icons

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

       Order of Heading elements on mobile by position

      • H1 : Einführung in die Informatik, ( 8px from top )
      • H3 : 10. Auflage, 2013., ( 107.4375px from top )
      • H2 : Prof. Dr. H.Peter Gumm, Prof. Dr. Manfred Sommer , ( 150.34375px from top )
      • H4 : Textproben, ( 269.25px from top )
      • H4 : Inhalt, ( 310.515625px from top )
      • H4 : Downloads, ( 340.515625px from top )
      • H4 : Vorwort, ( 351.78125px from top )
      • H5 : Kapitel 01, ( 382.6875px from top )
      • H4 : Kapitel 1, ( 393.046875px from top )
      • H5 : Kapitel 02, ( 423.859375px from top )
      • H4 : Kapitel 2, ( 434.3125px from top )
      • H5 : Kapitel 03, ( 465.03125px from top )
      • H4 : Kapitel 3, ( 475.578125px from top )
      • H5 : Kapitel 04, ( 506.203125px from top )
      • H4 : Kapitel 4, ( 516.84375px from top )
      • H5 : Kapitel 06, ( 547.375px from top )
      • H4 : Kapitel 5, ( 558.109375px from top )
      • H5 : Kapitel 08, ( 588.546875px from top )
      • H4 : Kapitel 6, ( 599.375px from top )
      • H5 : Kapitel 09, ( 629.71875px from top )
      • H4 : Kapitel 7, ( 640.640625px from top )
      • H5 : Kapitel 11, ( 670.890625px from top )
      • H4 : Kapitel 8, ( 681.90625px from top )
      • H4 : Kapitel 9, ( 723.171875px from top )
      • H4 : Kapitel 10, ( 764.4375px from top )
      • H4 : H.P.Gumm, ( 773.328125px from top )
      • H4 : Kapitel 11, ( 805.703125px from top )
      • H4 : M.Sommer, ( 814.59375px from top )
      • H4 : Kapitel 12, ( 846.96875px from top )
      • H4 : Errata, ( 855.859375px from top )
      • H4 : Index, ( 888.234375px from top )

       Typos

      nformatikbuch.de, iunformatikbuch.de, unformatikbuch.de, ijnformatikbuch.de, jnformatikbuch.de, informatikbuch.de, nformatikbuch.de, ilnformatikbuch.de, lnformatikbuch.de, ionformatikbuch.de, onformatikbuch.de, i8nformatikbuch.de, 8nformatikbuch.de, i9nformatikbuch.de, 9nformatikbuch.de, i*nformatikbuch.de, *nformatikbuch.de, iformatikbuch.de, inbformatikbuch.de, ibformatikbuch.de, ingformatikbuch.de, igformatikbuch.de, inhformatikbuch.de, ihformatikbuch.de, injformatikbuch.de, ijformatikbuch.de, inmformatikbuch.de, imformatikbuch.de, in formatikbuch.de, i formatikbuch.de, inormatikbuch.de, infcormatikbuch.de, incormatikbuch.de, infdormatikbuch.de, indormatikbuch.de, infeormatikbuch.de, ineormatikbuch.de, infrormatikbuch.de, inrormatikbuch.de, inftormatikbuch.de, intormatikbuch.de, infgormatikbuch.de, ingormatikbuch.de, infbormatikbuch.de, inbormatikbuch.de, infvormatikbuch.de, invormatikbuch.de, infrmatikbuch.de, infoirmatikbuch.de, infirmatikbuch.de, infokrmatikbuch.de, infkrmatikbuch.de, infolrmatikbuch.de, inflrmatikbuch.de, informatikbuch.de, infrmatikbuch.de, infoprmatikbuch.de, infprmatikbuch.de, info9rmatikbuch.de, inf9rmatikbuch.de, info0rmatikbuch.de, inf0rmatikbuch.de, infomatikbuch.de, inforematikbuch.de, infoematikbuch.de, infordmatikbuch.de, infodmatikbuch.de, inforfmatikbuch.de, infofmatikbuch.de, inforgmatikbuch.de, infogmatikbuch.de, infor4,matikbuch.de, info4,matikbuch.de, infortmatikbuch.de, infotmatikbuch.de, infor5matikbuch.de, info5matikbuch.de, inforatikbuch.de, informnatikbuch.de, infornatikbuch.de, informhatikbuch.de, inforhatikbuch.de, informatikbuch.de, inforatikbuch.de, informjatikbuch.de, inforjatikbuch.de, informkatikbuch.de, inforkatikbuch.de, informlatikbuch.de, inforlatikbuch.de, inform atikbuch.de, infor atikbuch.de, informtikbuch.de, informaqtikbuch.de, informqtikbuch.de, informawtikbuch.de, informwtikbuch.de, informaztikbuch.de, informztikbuch.de, informatikbuch.de, informtikbuch.de, informaxtikbuch.de, informxtikbuch.de, informastikbuch.de, informstikbuch.de, informaikbuch.de, informatrikbuch.de, informarikbuch.de, informatfikbuch.de, informafikbuch.de, informatgikbuch.de, informagikbuch.de, informathikbuch.de, informahikbuch.de, informatyikbuch.de, informayikbuch.de, informat5ikbuch.de, informa5ikbuch.de, informat6ikbuch.de, informa6ikbuch.de, informatkbuch.de, informatiukbuch.de, informatukbuch.de, informatijkbuch.de, informatjkbuch.de, informatikbuch.de, informatkbuch.de, informatilkbuch.de, informatlkbuch.de, informatiokbuch.de, informatokbuch.de, informati8kbuch.de, informat8kbuch.de, informati9kbuch.de, informat9kbuch.de, informati*kbuch.de, informat*kbuch.de, informatibuch.de, informatikubuch.de, informatiubuch.de, informatikjbuch.de, informatijbuch.de, informatikmbuch.de, informatimbuch.de, informatiklbuch.de, informatilbuch.de, informatikobuch.de, informatiobuch.de, informatikuch.de, informatikbvuch.de, informatikvuch.de, informatikbfuch.de, informatikfuch.de, informatikbguch.de, informatikguch.de, informatikbuch.de, informatikuch.de, informatikbhuch.de, informatikhuch.de, informatikbnuch.de, informatiknuch.de, informatikb uch.de, informatik uch.de

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