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

Search Engine Optimization (SEO)

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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
  • Hyphens: split words using hyphens
  • www or no-www: provide both domains, but set a prefered version in Google Webmaster Tools
  • Localisation: choose 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
  • File extension: do not strip out the file extension on URLs

Accessibility

  • 403: provide a 403 - Access denied page
  • 404: provide a 404 - Page not found page
  • Robots: block pages which should not be indexed via the robots.txt file or <meta name="robots" content="">
  • File not found: avoid 404 FILE_NOT_FOUND errors
  • Redirects: Avoid redirects if possible. Use 301 redirect instead of 302
  • Pagination: implement the rel="next" and rel="prev" attributes to links
  • Moving a website: redirect all your links to the new location via .htaccess
  • Performance: performance and loading time is important
  • Validation: write valid code (HTML Validator CSS Validator)
  • WAI-Aria: use WAI-Aria tags to help machines understanding your code
  • RichSnippets: markup your code with rich snippets, they show up on the search results page
  • Custom Search: with sitelink Google Sitelink search box, people can reach your content more quickly
  • Layout: Use divs instead of tables for layout. Using tables is semantically not correct.

Meta Information

  • Title: each page should 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 should 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
  • Flash: avoid Flash content and flash pages. They are not accessible on mobile phones and will be ranked lower

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

Videos

  • Controls: Add controls to playback and control your video
  • Embed: Allow others to embed your videos
  • Transcriptions: use transcriptions for indexing, usability & content
  • Unplayable content: Avoid unplayable video content. Use HTML5 <video> tag instead of Flash

Links

  • Title: add the title attribute to links
  • Backlinks: Only add external links if you got a backlink to your site
  • nofollow: add rel="nofollow" attribute to external links only to prevent spam and bad links
  • Internal links: add ~3 internal links to your content
  • Naming: Use a descriptive link name: “Click here” or “Read more” are bad link text. Better “Read more about SEO and Web Accessibility”

Mobile

  • Viewport: tell browsers how to adjust the page's dimension and scaling to suit the device <meta name="viewport" content="width=device-width, initial-scale=1">
  • mobile friendly: mobile optimized sites are marked in search results. Test for mobile friendly site
  • AppLinks: apps that link to your content can then use this metadata to deep-link into your app
  • Tap targets: clickable links should not be too small
  • Smart App Banner: Safari has a Smart App Banner feature that provides a standardized method of promoting apps on the App Store from a website.

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

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="//plus.google.com/u/0/[GOOGLE+ ID]"> or <a href="//plus.google.com/u/0/[GOOGLE+ ID]" rel=author">Google+ Profile</a> or <a href="//plus.google.com/u/0/[GOOGLE+ ID]" rel=me">Google+ Profile</a> or <a href="//plus.google.com/u/0/[GOOGLE+ ID]" rel=publisher">Google+ Profile</a>

Tools & Services

Webmasters

  • Bing Webmasters: allows webmasters to add their websites to the Bing index crawler.
  • Google Search Console (GWT): allows webmasters to check indexing status and optimize visibility ot their websites
  • Google Tag Manager: Learn about Google Analytics Tag Manager and how it can help simplify your life and need for IT requests. Launch new tags with a few clicks.

Analytics

Optimization

  • PageSpeed Insights: Page Speed Insights measures the performance of a page for mobile devices and desktop devices.
  • Varvy Seo tool: displays: domain strength, links, image seo, social counts & mentions, page/technical seo, pagespeed and more.
  • Webpagetest.org: Web Page Test gives you an overall performance waterfall as well as rendering timeline for sites. It also provides critical insight into time to first byte and what could be holding back web page performance

Keywords

  • AdWords Keyword Tool: plan your Search Network campaigns and learn what your customers are looking for
  • Google Trends: explore Google trending search topics with Google Trends.

Links

Structured Data

Bookmarklets

  • OuiSEO: An open-source bookmarklet that shows you on-page SEO and social meta data information.
  • SEO Bookmarklet: A One-Stop SEO Bookmarklet to Quickly Review On-Site SEO

Books

Courses

  • Analyzing Your Website to Improve SEO: Walks step-by-step through the process of reviewing the content and markup of a web site to improve its ranking in search engine results. With Peter Kent by Lynda.com
  • ClickMinded Search Engine Optimization Training: ClickMinded Search Engine Optimization Training with Tommy Griffith by udemy
  • Ecommerce SEO 101 Video Series: Ecommerce SEO 101 Video Series with Helen Overland by shopify
  • Improving SEO Using Accessibility Techniques: Make web sites more accessible and search engine friendly through proper markup and web standards compliance. With Morten Rand-Hendriksen by Lynda.com
  • International SEO Fundamentals: Attract international visitors to your websites with these SEO tips. Learn how to determine target markets and optimize your website's technical aspects and content for countries and languages around the world. With David Booth by Lynda.com
  • Learning Search Engine Optimization (SEO): A Video Introduction: Learning Search Engine Optimization (SEO): A Video Introduction with Matt Bailey by video2brain
  • Learning Web Analytics: Learning Web Analytics with Matt Bailey by video2brain
  • SEO Fundamentals: SEO Fundamentals with David Booth by Lynda.com
  • SEO Fundamentals: SEO Fundamentals with Paul Wilson by Pluralsight
  • SEO Tools Fundamentals: Learn about today's top SEO tools for technical optimization, content optimization, offsite optimization, and competitive research. With Brad Batesole by Lynda.com
  • SEO Training Course by Moz: SEO Training Course with Moz by udemy
  • SEO for Beginners: SEO for Beginners: A Video Guide Introduction
  • SEO for Ecommerce: SEO for ecommerce is different. Get strategies tailored for optimizing an online store to improve page rankings and build traffic. With Steven Harris by Lynda.com
  • SEO for Local Visibility: Achieve maximum visibility in search rankings with these local SEO strategies. With Brad Batesole by Lynda.com
  • SEO for Web Designers: SEO for Web Designers with Craig Campbell by TutsPlus
  • SEO: Keyword Strategy in Depth: Learn how to research keywords, apply them to your website, and create ad campaigns around keywords. Increase your site traffic and better understand your user's intent with keywords. With Matt Bailey by Lynda.com
  • SEO: Link Building in Depth: Investigates the anatomy of a link, how links affect page ranking, and the properties that make an excellent inbound link. With Peter Kent by Lynda.com
  • Spying with SEO Tools: Learn how to use SEO tools and techniques to research the competition online. Find out what keywords your competitors are optimizing for—and then outrank them on search engine results pages. With Anson Alexander by Lynda.com
  • Video SEO Basics: Optimize your videos for search engines and convert the traffic to achieve your business goals. With Ian Lurie by Lynda.com
  • WordPress Plugins: SEO: Drive more visitors to your WordPress site by performing search engine optimization, or SEO, with the help of two powerful plugins. With Morten Rand-Hendriksen by Lynda.com

License

CC0