Last Update: 11/19/2018
.htaccess tester – Test your file for errors and issues.
301/302 Redirect Checker – A quick way to check a redirect to see what type it is.
960 Grid System – A great reference to how the 960 works.
Bit.ly – Shorten URLs and track the clicks.
Convertkit – Great for email nurture campaigns.
Epic Privacy Browser – Browser with an on/off toggle to enable a proxy and hide the IP address.
Facebook Debugger – Important to run between refreshes when experimenting with OG data
FindThat.email – Find e-mail addresses that would otherwise be hard to key in on.
Google Campaigns URL Builder – Super easy to use, and invaluable in helping you track the success of campaigns.
Google Keyword Planner – The remaining way to do keyword research straight from the source.
Google Search Operators – A solid list of Google’s search operators.
Google SERP Snippet Optimization Tool – Easily write titles and descriptions, and enter URLs while staying within character count.
Google SERP Title Tag Optimization Tool – MOZ’s updated tool for title tags.
Google’s Structured Data Testing Tool – Great for seeing if structured data and/or Authorship is set up properly.
Google Trends – Find out what keywords are trending online.
GroupHigh – If you can afford it, it’s fantastic for finding influencers and guest blog opportunities.
GTMatrix – Solid speed testing tool for websites.
HEIC to JPG Converter – Because it looks like Photoshop doesn’t support HEIC images yet, and they’re not going away.
How Search Works – A virtual playground of SEO exploration I intend to visit more often.
Invision – Great for UX/Design collaboration
LatLong.net – Get the exact latitude and longitude of places.
Lucky Orange – My preferred tool for UX/CRO testing.
MobileTest.me – Test how your website looks in several leading mobile devices.
Mobile Friendly Test – Google Developer Tool to test mobile compatibility and get helpful suggestions.
MonkeyTest.it – Run a troubleshooting check of a given web page.
Online Chart Tool – This is an neat free chart tool I formerly used to create visuals when building SEO site evaluations.
SilverPop’s 2013 E-mail Marketing Metrics Benchmark Study – An absolute wealth of data on e-mail marketing, conversions, and demographics.
Squoosh – Google’s image optimization tool
The Old Reader – My RSS Reader
Tweet Binder – Find out traffic volume estimates while doing hashtag research.
Video Rich Snipper Generator By Sistrix – Great for populating schema into videos. Sadly, now only available in German.
WaybackPack – Download the entire Wayback Machine archive for a given URL.
Web Page Test – A handy tool to find various website page speed metrics.
What CMS Is This? – Quickly scan a site and identify its CMS platform.
CMS Detect – Find out what CMS the site you’re on is using with a single click.
Let Me Out – You know those scam/spam ads that trap you in an infinite dialog loop, where you have to close your browser to escape? This makes that impossible.
Redirect Path – Find out what’s happening in your page redirects. Super useful.
SelectorGadget – Really helpful in isolating CSS elements when you’re trying to track stuff in GTM.
Tag Assistant – A bread and butter plugin. Find out if GA, GTM, adwords, and other tags are running on the site.
View Image Info – Handy, faster way to see image sizes without diving into developer tools.
View Rendered Source – See how the rendered source code compares to the original.
AWRStudyr: Learn various back-end insights on a website you’re viewing.
Image Pro: Automatically resize images on the fly. No gigantic images that only look small anymore.
No Image Link: Works out of the box. Stops images from linking to themselves.
sh404SEF – I’ve had good experiences with this one so far for Joomla.
WP Force Lowercase URLs: Enforce URL parameters.
WP Site Mapping: A super easy to use HTML sitemap generator, albeit a little quick and dirty, and slow to load.
Yuzo – A great related posts plugin.