Theory
1,949 items in 14 lists
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Natural Number Game adam.math.hhu.de
Interactive Lean 4 game that introduces theorem proving through guided exercises about natural numbers.
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Category Theory academic.oup.com
Paid textbook by Steve Awodey.
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3Blue1Brown 3blue1brown.com
Animated explanations of mathematics by Grant Sanderson.
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First Proof Project 1stproof.org
Independent project that publishes research-level problems, evaluation methods, solutions, and expert commentary for assessing AI systems in mathematics.
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Yoast SEO wordpress.org
Improve your WordPress SEO: Write better content and have a fully optimized WordPress site using Yoast SEO plugin.
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Slim SEO wordpress.org
Automated SEO tasks for you with a lightweight WordPress SEO plugin.
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All in One SEO Pack wordpress.org
The most downloaded plugin for WordPress (almost 30 million downloads). Use All in One SEO Pack to automatically optimize your site for Search Engines.
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HTTPS webmasters.googleblog.com
Security is a top priority for Google.
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SEO for Web Designers webdesign.tutsplus.com
SEO for Web Designers with Craig Campbell by TutsPlus.
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WAI-Aria w3.org
Use WAI-Aria tags to help machines understand your code.
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Responsive Images w3.org
Serve the most optimized image corresponding to the window size.
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Learning Web Analytics video2brain.com
Learning Web Analytics with Matt Bailey by video2brain.
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Learning Search Engine Optimization (SEO) - A Video Introduction video2brain.com
Learning Search Engine Optimization (SEO) - A Video Introduction with Matt Bailey by video2brain.
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Varvy Seo tool varvy.com
Displays: domain strength, links, image seo, social counts & mentions, page/technical seo, pagespeed and more.
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HTML Validator validator.w3.org
CSS Validator).
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SEO Training Course by Moz udemy.com
SEO Training Course with Moz by udemy.
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Basic SEO Features typo3.org
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.
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Google sitemap typo3.org
High performance Google sitemap implementation that avoids typical errors by other similar extensions.
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SEO Bookmarklet twkm.ca
A One-Stop SEO Bookmarklet to Quickly Review On-Site SEO.
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Search Engine Spider Simulator tools.seochat.com
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.
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nofollow support.google.com
Add rel="nofollow" attribute to external links only to prevent spam and bad links.
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Video sitemap support.google.com
Make sure, search engines know about all the video content on your site.
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Localisation support.google.com
Choose a country-specific domain, for better local search results.
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Mobile sitemap support.google.com
For feature phones, you can create a mobile sitemap.
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XML sitemap support.google.com
Help search engines to index your pages.
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Image sitemap support.google.com
Increase that your images can be found in Image Search results.
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Pagination support.google.com
Implement the rel="next" and rel="prev" attributes to links.
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Alt tag support.google.com
Add an alt-tag this a description of the image (60 - 70 characters).
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URL builder support.google.com
Use this tool to add custom campaign parameters to your URLs.
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SpyFu spyfu.com
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.
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SimilarWeb similarweb.com
Compare website traffic with SimilarWeb.com's advanced traffic estimator tool. See any website's traffic sources & uncover their online marketing strategies.
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Ecommerce SEO 101 Video Series shopify.com
Ecommerce SEO 101 Video Series with Helen Overland by shopify.
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SEO For Dummies, 6th Edition shop.oreilly.com
Your fully updated guide to search engine optimization.
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SEO Warrior shop.oreilly.com
Essential Techniques for Increasing Web Visibility.
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The SEO Battlefield shop.oreilly.com
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.
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The Art of SEO, 3rd Edition shop.oreilly.com
Mastering search engine optimization.
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SEOwl seowl.co
Track your keyword rankings overtime and monitor your backlinks
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Seomator seomator.com
SEO Audit Tool and website crawler for SEO performance improving with How-to-Fix tips.
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SEO for Beginners seoforbeginners.com
SEO for Beginners: A Video Guide Introduction.
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SEMrush semrush.com
SEMrush is a powerful and versatile competitive intelligence suite for online marketing, from SEO and PPC to social media and video advertising research.
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Screaming Frog SEO Spider Tool & Crawler Software screamingfrog.co.uk
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.
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SEO Fundamentals pluralsight.com
SEO Fundamentals with Paul Wilson by Pluralsight.
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OptimalUX optimalux.com
Optimize your site with seamless SEO patching and an A/B testing tool built on top of Cloudflare for easy integration.
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OpenLinkProfiler openlinkprofiler.org
Get an in-depth analysis of the freshest live backlinks.
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MozBar moz.com
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!
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Open Site Explorer moz.com
Use Open Site Explorer to identify link building opportunities. Research backlinks, identify top pages, view social activity, and analyze anchor text.
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Languages moz.com
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 <link rel="alternate" href="example.com/fr/" hreflang="fr-fr" />.
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Followerwonk moz.com
Tools for Twitter Analytics, Bio Search and More.
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Moz Keyword Explorer moz.com
Paid Keyword Tool that provides precise search volume, keyword difficulty, SERP Features and organic click through rate data.
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The Beginner's Guide to SEO moz.com
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.
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