A listing.
- Apple apps
- BuiltWith (what’s that site built with?)
- Cache – refresh your cache (per specific browsers)
- Color Blender (Meyer)
- Down Detector – are online services having issues? View, report.
- Downforeveryoneorjustme.com . websitedown.info .
- Fast.com .
- Favicon generator
- Google: Page Speed . My Activity . Design Tools . Analytics Academy .
- GTmetrix (page speed)
- IP location (what’s the geolocation of…)
- Lorem ipsum: Fillerati .
- MailBigFile
- md5 hash generator
- MX Lookup
- Prevue.it
- Responsiveness check
- Securi sitecheck (malware & security)
- Stylifyme (what’s styling on that site?)
- Varvy SEO tool (page follow Google’s guidelines?)
- Website crawler & XML Sitemap Generator
- WordFence security learning center
Paid only:
- Adobe Sign (formerly EchoSign)
- BrowserStack