Knowledge Base

Americans with Disabilities Act (ADA)

http://www.trinthlo.com/kb/americans-with-disabilities-act-ada

Information regarding Americans with Disabilities Act (ADA) relating to website.

Broken Link Checker Tool - Dead Link Checker

https://www.deadlinkchecker.com/website-dead-link-checker.asp

Want to find broken links on your website for free? Check out this quick, easy to use broken link checker tool & identify 404 pages in no time.

CDNs fail, but your scripts don't have to - fallback from CDN to local jQuery - Scott Hanselman

https://www.hanselman.com/blog/CDNsFailButYourScriptsDontHaveToFallbackFromCDNToLocalJQuery.aspx

There's a great website called http://whoownsmyavailability.com that serves as a reminder to me (and all of us) that external dependencies are, in fact, ...

Check your CSR | DigiCert SSLTools

https://ssltools.digicert.com/checker/views/csrCheck.jsp

Check SSL Certificate installation and scan for vulnerabilities like DROWN, FREAK, Logjam, POODLE and Heartbleed.

Color Contrast Tools | Web Axe

https://www.webaxe.org/color-contrast-tools/

ConvertICO.com - Convert PNG to ICO, quickly

http://www.convertico.com/

Free Online Icons Converter - Convert PNG to ICO files : Windows 10, 8 and 7 compatible icons

Critical CSS generator

https://www.corewebvitals.io/tools/critical-css-generator

Critical Path CSS Generator

https://www.sitelocity.com/critical-path-css-generator

CSR Decoder - Check CSR to verify its contents

https://www.sslshopper.com/csr-decoder.html

Use this CSR Decoder to decode your SSL Certificate Signing Request and verify that it has the correct information. This tool will decode CSRs so you can easily see their contents.

Domain Control Validation

http://www.trinthlo.com/kb/domain-control-validation

The domain ownership rights should be confirmed prior to the certificate issuance. Different methods of Domain Control Validation can be chosen during the activation process.

Fetching mail from a POP3 server using php - Stack Overflow

https://stackoverflow.com/questions/3165014/fetching-mail-from-a-pop3-server-using-php

GTmetrix | Website Speed and Performance Optimization

https://gtmetrix.com/

See how your site performs, reveal why it's slow and discover optimization opportunities.

HTTP Status Codes Checker ~ Server Header Response Code Checking Tool

http://tools.seobook.com/server-header-checker/

Free bulk and single URL server header response code checker and meta refresh detection script.

Image Alt Tag Checker

https://www.seoptimer.com/alt-tag-checker

JPG to WEBP (Online & Free)

https://convertio.co/jpg-webp/

Best way to convert your JPG to WEBP file in seconds. 100% free, secure and easy to use! Convertio — advanced online tool that solving any problems with any files.

Mobile-Friendly Test - Google Search Console

https://search.google.com/test/mobile-friendly

PageSpeed Insights

https://developers.google.com/speed/pagespeed/insights

SSL Server Test: xxxx (Powered by Qualys SSL Labs)

https://www.ssllabs.com/ssltest/analyze.html?d=XXXX&hideResults=on

Testing guide | Authorize.net Developer Center

https://developer.authorize.net/hello_world/testing_guide.html