search-engine-optimization

Do not strip out the file extension on URLs

Security is a top priority for Google

Split words using hyphens

Choose a country-specific domain, for better local search results

Subdomains are seen as separate domains

Use this tool to add custom campaign parameters to your URLs

With Google Sitelink search box, people can reach your content more quickly

Implement the and attributes to links

Performance and loading time is important

Markup your code with rich snippets, they show up on the search results page

Block pages which should not be indexed via the file or

Validation: Write valid code ( )

Use WAI-Aria tags to help machines understand your code

Each page should have a unique description (max. 160 characters)

You can ommit the , search engines do not use this meta tag

Keyword should appear in URL name

Do not provide duplicated content, use unique content types

Add an alt-tag this a description of the image (60 - 70 characters)

Use a short descriptive name

Optimize images by removing some meta information

Serve the most optimized image corresponding to the window size

Avoid unplayable video content. Use HTML5 tag instead of Flash

The hreflang tag tells Google which language you are using on a specific page, so the search engine can serve that result to users searching in that language

Add attribute to external links only to prevent spam and bad links

Apps that link to your content can then use this metadata to deep-link into your app

Mobile optimized sites are marked in search results. Test for

Safari has a Smart App Banner feature that provides a standardized method of promoting apps on the App Store from a website

Clickable links should not be too small

A HTML sitemap allows site visitors to easily navigate a website

Increase that your images can be found in Image Search results

For feature phones, you can create a mobile sitemap

Make sure, search engines know about all the video content on your site

Help search engines to index your pages

Sharing Best Practices for Websites & Mobile Apps

The Open Graph protocol enables any web page to become a rich object in a social graph

Add social profiles to your Google search results

With Twitter cards, you can attach photos, videos and media experience to you Tweets

Allows webmasters to add their websites to the Bing index crawler

Allows webmasters to check indexing status and optimize visibility of their websites

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

Analyze websites, track social media, build backlinks - Ahrefs has you covered. Try our marketing and SEO tools Site Explorer and Content Explorer today!

Find the most shared content for any topic or domain

Tools for Twitter Analytics, Bio Search and More

Generate detailed statistics about a website's traffic

Use Open Site Explorer to identify link building opportunities. Research backlinks, identify top pages, view social activity, and analyze anchor text

An open analytics platform

SEMrush is a powerful and versatile competitive intelligence suite for online marketing, from SEO and PPC to social media and video advertising research

SEO Audit Tool and website crawler for SEO performance improving with How-to-Fix tips

SEOstats

SEOstats is a powerful open source PHP library to request a bunch of SEO relevant metrics

Compare website traffic with SimilarWeb.com's advanced traffic estimator tool. See any website's traffic sources & uncover their online marketing strategies

Unlimited searches of any competitor's keywords for SEO or Google Ads. Research keywords, and find any domain's strongest content and their most dominant ad copy

Measure and boost your impact on Twitter

Simple and privacy-friendly alternative to Google Analytics

Get the web's modern capabilities on your own sites and apps with useful guidance and analysis from Web.dev. Whether you already have a website or you're just getting started, learn to build for the modern web at Web.dev

Page Speed Insights measures the performance of a page for mobile devices and desktop devices

Displays: domain strength, links, image seo, social counts & mentions, page/technical seo, pagespeed and more

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

WooRank will help you to address issues on your site & identify opportunities to push you ahead of the competition

AwesomeTechStack provides insights into the security, modernity, and performance of any website's technology stack and guidance to improve web vitals and the technology stack

Explore Google trending search topics with Google Trends

Plan your Search Network campaigns and learn what your customers are looking for

Best FREE alternative to Google Keyword Tool for SEO & PPC keyword research! Get 750+ relevant long-tail keywords from Google Suggest in seconds!

Paid Keyword Tool that provides precise search volume, keyword difficulty, SERP Features and organic click through rate data

Free keyword analytics tool that allows you to visualize and group keyword metrics with tree diagrams. The tool works with data from the Google Search Console API and CSVs

Track your keyword rankings overtime and monitor your backlinks

Get an in-depth analysis of the freshest live backlinks

This tool simulates a search engine by displaying the contents of a web page in exactly the way the search engine bot would see it when it crawls the page: See most prominent or inaccessible page elements

The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites links, images, CSS, script and apps from an SEO perspective

Linkbuilding Spider

A PHP project to check if websites are linking to your website

An online broken link checker app

Enter the URL you want to scrape to see how the page's markup appears to Facebook

Validate your Rich Pins and apply to get them on Pinterest

Paste in your rich snippets or url to test it

Enter the URL of the page with the meta tags to validate

OuiSEO

An open-source bookmarklet that shows you on-page SEO and social meta data information

A One-Stop SEO Bookmarklet to Quickly Review On-Site SEO

The SEO Toolbar from Moz gives you quick access to many on-page SEO factors, Domain & Page Authority plus a quick nofollow toggle. Download the Free Toolbar today!

Jekyll SEO Tag

A Jekyll plugin to add metadata tags for search engines and social networks to better index and display your site's content

Adds a separate field for the title-tag per page, easy and SEO-friendly keywords and description editing in a new module as well as a flexible Google Sitemap

High performance Google sitemap implementation that avoids typical errors by other similar extensions

The most downloaded plugin for WordPress (almost 30 million downloads). Use All in One SEO Pack to automatically optimize your site for Search Engines

Improve your WordPress SEO: Write better content and have a fully optimized WordPress site using Yoast SEO plugin

Automated SEO tasks for you with a lightweight WordPress SEO plugin

Learn SEO strategies to rank at the top of Google with SEO 2016

Bruce Clay is one of the most respected figures in the SEO community, teaching classes and workshops at all the major conferences. Like the ‘Art of SEO,’ this book is actually pretty technical and probably not your best easy, first guide, despite being part of the ‘Dummies’ series

A Comprehensive Must-Have Guide to SEO in Today's Competitive Search Environment

Step-by-step book on SEO, starting with goals, going through on page SEO such as page tags, and ending up with off page SEO such as link-building and social mentions

Your fully updated guide to search engine optimization

Also starts with keywords and covers ON PAGE and OFF PAGE SEO. Emphasizes the importance of speed, and has a nice appendix with SEO resources, glossary, and links

Essential Techniques for Increasing Web Visibility

Introduction to Google Analytics, Webmaster, Website traffic, Adwords, Pay per click, Website promotion and Search engine optimization

Mastering search engine optimization

New to SEO? Need to polish up your knowledge? The Beginner's Guide to SEO has been read over 3 million times and provides the information you need to get on the road to professional quality SEO

If you want to establish an ongoing SEO program with the goal of increased traffic and search prominence, this practical step-by-step guide will help you understand SEO methodology and then show you how to put those theories into practice

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 is an SEO training course for startups that want to grow their organic traffic and sales as quickly as possible

Ecommerce SEO 101 Video Series with Helen Overland by shopify

Make web sites more accessible and search engine friendly through proper markup and web standards compliance. With Morten Rand-Hendriksen by Lynda.com

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 with Matt Bailey by video2brain

Learning Web Analytics with Matt Bailey by video2brain

SEO for Beginners: A Video Guide Introduction

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

Achieve maximum visibility in search rankings with these local SEO strategies. With Brad Batesole by Lynda.com

SEO for Web Designers with Craig Campbell by TutsPlus

SEO Fundamentals with David Booth by Lynda.com

SEO Fundamentals with Paul Wilson by Pluralsight

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 with Moz by udemy

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

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

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

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