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Search Engine Optimization (SEO)

A helpful checklist / collection of Search Engine Optimization (SEO) tips and technics.

Table of Contents

URL

  • Descriptive URLs: use a descriptive page url, which should reflect your targeted keyword
  • Subdomain or subfolder: subdomains are seen as separate domains
  • Hyphans: split words using hyphans
  • www or no-www: provide both domains, but set a prefered version in Google Webmaster Tools
  • Localisation: chookse a country-specific domain, for better local search results
  • HTTPS: Security is a top priority for Google
  • URL builder: Use this tool to add custom compaign parameters to your URLs

Meta Information

  • Title: each page shound have a unique speaking title (60 - 100 characters)
    <title>Website Title</title>
  • Description: each page should have a unique description (max. 160 characters)
    <meta name="description" content="">

Keywords

  • Single: every page shound have a single unique targeted keyword
  • Research: rank for keywords with high traffic and less competition
  • URL: keyword should appear in URL name
  • Title: keyword should appear in page title
  • Heading: keyword should appear in headings
  • Content: keyword should apear in ~3% of article length
  • Meta Tag: you can ommit the <meta name="keywords" content="">, search engines do not use this meta tag

Content

  • Content: Content matters the most in SEO
  • Headings: Clear structure H1 - H6 max. 70 characters long
  • Strong: use strong tag to highlight your targeted keyword
  • Uniqueness: do not provide duplicated content, use unique content types
  • Length: article should be at least 300 words
  • Freshness: new content is important. Updating pages or regulary posting is recommended

Images

  • File name: use a short descriptive name
  • Alt tag: add an alt-tag this a description of the image (60 - 70 characters)
  • Dimentions: add the width="" and height="" attributes to the image
  • Responsive Images: serve the most optimized image corresponding to the window size
  • Size: keep the filesize as low as possible
  • Optimization: Optimize images by removing some meta information

Links

  • Title: add a descriptive title to links
  • Backlinks: Only add external links if you got a backlink to your site
  • nofollow: add rel="nofollow" attribute to external links
  • Internal links: add ~3 internal links to your content

Social Media

  • Social Shares: provide sharing options for your site
  • Social Profiles: add social profiles to your Google search results
  • OpenGraph: The Open Graph protocol enables any web page to become a rich object in a social graph.
  • Facebook: Sharing Best Practices for Websites & Mobile Apps
  • Twitter: with Twitter cards, you can attach photos, videos and media experience to you Tweets
  • Authorship information
  • Google+ Authorship: add Google+ authorship information to your page
    <link rel="author" href="https://plus.google.com/u/0/[GOOGLE+ ID]"> or
    <a href="https://plus.google.com/u/0/[GOOGLE+ ID]" rel=author">Google+ Profile</a> or
    <a href="https://plus.google.com/u/0/[GOOGLE+ ID]" rel=me">Google+ Profile</a> or
    <a href="https://plus.google.com/u/0/[GOOGLE+ ID]" rel=publisher">Google+ Profile</a>

Sitemap

  • HTML sitemap: An HTML sitemap allows site visitors to easily navigate a website.
  • XML sitemap: Help search engines to index your pages
  • Image sitemap: Increase that your images can be found in Image Search results
  • Video sitemap: Make sure, search engines know about all the video content on your site
  • Mobile sitemap: For feature phones, you can create a mobile sitemap

Errors and access

  • provide 403 - Acced denied page
  • provide 404 - Page not found page
  • add a robots.txt file
  • Avoid FILE_NOT_FOUND errors

Performance

  • Performance and loading time matters
  • only serve concatenated and minified files
  • if possible no redirects
  • compress images (ImageOptim)

UX

  • User friendly site
  • clickable links should not be too small

Mobile

  • add viewport tag
 <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1.0">

Validation and accessibility

Search

Analytics

Tools