Ultimate Web Tools List

Fewer Than Three’s compilation of super useful web tools.
These are free web-based tools we use on a day-to-day basis.

Bookmark this list, we’ll making it better over time.
Shortlink: https://fewerthanthree.com/tools/
Comment and suggest other web tools that should be listed.

 

List Version 1.1.3

Search Engine Optimization Tools

Identify broken links on your site

http://www.brokenlinkcheck.com/
https://validator.w3.org/checklink

Test to see the redirect chain and status codes for a URL

http://www.redirect-checker.org/index.php

Test SEO-ness of a site

http://nibbler.silktide.com/
http://www.seowebpageanalyzer.com/
https://www.seocentro.com/tools/seo/seo-analyzer.html

Site Load Time Tools

Check the load time / speed of your site

http://tools.pingdom.com/fpt/
https://gtmetrix.com/
http://www.webpagetest.org/
https://developer.microsoft.com/en-us/microsoft-edge/tools/staticscan/
https://testmysite.thinkwithgoogle.com/
https://developers.google.com/speed/pagespeed/insights/
https://tools.keycdn.com/speed

Hosting Tools

Is a site down for everyone or just you

http://www.downforeveryoneorjustme.com/

See what your site looks like visiting from other countries

https://geopeeker.com

Website test URL

http://hosts.cx/

Find out the hosting provider of any web page

https://satoristudio.net/who-is-hosting/

DNS Tools

View the WHOIS record for a domain

http://www.whois.com/whois/

Check a domain’s SPF records

https://mxtoolbox.com/problem/spf/spf-included-lookups
http://www.spfwizard.net/
http://www.kitterman.com/spf/validate.html

See how DNS for a site is propagated

http://cachecheck.opendns.com/

See the DNS history for a domain

http://dnstrails.com/

 

SSL Certificates / TLS Tools

Check an SSL certificate

https://www.ssllabs.com/

Check why an SSL web page is showing as insecure

https://www.whynopadlock.com/

Scan your website for non-secure content

https://www.jitbit.com/sslcheck/

Check if a website properly supports the SPDY protocol

http://spdycheck.org/

Check your site for weak SHA-1 certificates

https://shaaaaaaaaaaaaa.com/

 

Security / Malware Tools

Scan a site for malware

https://sitecheck.sucuri.net/

Mozilla Security Scanner

See if a site is on a malware blacklist

https://www.stopbadware.org/clearinghouse/search/
http://mxtoolbox.com/blacklists.aspx

 

Editing / Writing Tools

Compress images

https://compressor.io/compress

How a title should be capitalized

http://titlecapitalization.com/

Get suggestions to make your writing better and more clear

http://www.hemingwayapp.com/

 

Design / Accessibility Tools

Website Accessibility check

http://wave.webaim.org/