How to: Free online tools :free:
* :fire: [**Internet Archive: Wayback Machine**](https://web.archive.org/) - The Internet archive, bringing back old/dead pages to live
* :star: [**BuiltWith**](https://builtwith.com/) - Find out what technology a website is built with
* [Wappalyzer](https://www.wappalyzer.com/) - Identify technology on websites. It detects content management systems, ecommerce platforms, web frameworks, server software, analytics tools and many more.
* [Netcraft](https://sitereport.netcraft.com/) - What's that site running? Find out the infrastructure and technologies used by any site, based on results from internet data mining
* [PageSpeed Insights](https://developers.google.com/speed/pagespeed/insights/) - Analyze a website performance
* [Socialtalents](http://loadme.socialtalents.com/Begin/New) - Loadme - cloud-based load / stress testing service for you website or API
* [Dillinger](http://dillinger.io/) - Online Markdown Editor
* :star: [**Air Mail**](http://en.getairmail.com/) - temporary email service
* [nBox](https://nbox.notif.me/) - fake email service, create as many fake emails you wish for protecting your privacy
* [Dead Link Checker](http://www.deadlinkchecker.com/website-dead-link-checker.asp) - Online Dead Link Checking Tool
* [Broken Link Checker](http://www.brokenlinkcheck.com/broken-links.php#status) - Online Dead Link Checking Tool
* [StackEdit](https://stackedit.io/editor) - in-browser markdown editor
* [XKPasswd](https://xkpasswd.net/s/) - secure memorable password generator inspired by [XKCD](http://xkcd.com/936/)
* [WhatsMyIP](http://www.whatsmyip.org/random-password-generator/) - password generator & other text related tools (hash lookup, regex tester)
* :star: [**YouTube to MP3 converter**](https://ytmp3.cc/)
* [Cached View](http://www.cachedview.com/) - Google + Wayback machine Cached Pages of any website
* [ChangeDetection](https://www.changedetection.com/) - Know automatically when any web page changes
* [WhatsMyIP](http://www.whatsmyip.org/port-scanner/) - Port scanners & other networking tools
* [IFTTT](https://ifttt.com/) - use existing services together to automate tasks and make your life easier
* [Jeffrey Friedl](http://exif.regex.info/exif.cgi) - Jeffrey's Image Metadata Viewer (Exif viewer)
* [Exif Viewer](http://exif-viewer.com/) - Another image metadata viewer
* [Whois](https://www.whois.com/whois/) - Whois to get domain name info + identity
* [Just Delete Me](http://backgroundchecks.org/justdeleteme/) - a directory of direct links to delete your account from web services
* [Just Delete Me](http://backgroundchecks.org/justdeleteme/fake-identity-generator/) - Fake identity generator
* [Why No Padlock](https://www.whynopadlock.com/) - find out why your web page is treated as insecure
* [Chandan Kumar](https://geekflare.com/ssl-certificate-tools) - 9 free useful online SSL/TLS Certificate Tools
* [Chandan Kumar](https://geekflare.com/ssl-test-certificate/) - Verify your SSL, TLS & Ciphers implementation.
* [Chandan Kumar](https://geekflare.com/find-sql-injection/) - Test your website for SQL injection attack
* [Rebex](https://sshcheck.com/) - SSL Check : checks the configuration of given server accessible over internet
* [Rex Swain](http://www.rexswain.com/httpview.html) - HTTP Viewer : See exactly what an HTTP request returns to your browser
* [IntoDNS](https://intodns.com/) - checks the health and configuration and provides DNS report and mail servers report.
* [Down for everyone or just me](http://downforeveryoneorjustme.com/) - Check if your website is down or up
* [**Qualys SSL Labs**](https://www.ssllabs.com/ssltest/index.html) - SSL Server test : deep analysis of any SSL web server configuration
* [Panopticlick](https://panopticlick.eff.org) - Test : Is your browser safe against tracking?
* [Am I unique](https://amiunique.org/fp) - Test : are you unique ? (what your fingerprint reveals about you)
* [Ookla](http://beta.speedtest.net/) - Speedtest : Test your internet connection speed
* [TestMy](http://testmy.net/) - Internet speed test
* [VirusTotal](https://www.virustotal.com/fr/) - free online scanner for virus, malware and URL, to avoid downloading crap on your machine
* [Jotti](https://virusscan.jotti.org/) - online virus scanner
* [Ethical Hacking Tools](https://pentest-tools.com/information-gathering/find-subdomains-of-domain) - Find subdomains / free online subdomain enumeration tool
* [8 Subdomain Finder Tools Online](https://www.nmmapper.com/sys/tools/subdomainfinder/) - Find subdomains using sublist3r, Amass, Anubis, Lepus and more online.
* [COMODO CA](https://crt.sh/) - Certificate search online
* [DNSdumpster](https://dnsdumpster.com/) - tool for dns recon & research, find & lookup dns records | can discover hosts related to a domain. Finding visible hosts from the attackers perspective is an important part of the security assessment process.
* [Ethical Hacking Tools](https://pentest-tools.com/home) - online penetration testing tools
* [Open Port Check Tool](https://www.