Internet-Tools

A small collection of a few handy internet-tools.

Privacy Checks

1. ipleak.net Browser check against WebRTC and DNS leaks
2. whatsmyip.org
3. whatismybrowser.com
4. ip-check.info JonDonym IP-check
5. test-ipv6.com
6. panopticlick.eff.org Browser check against tracking

Security Checks

1. eicar.org Antivirus test – Download EICAR testfile
2. ssllabs.com Browser SSL check
3. badssl.com Browsertest for SNI (Server Name Indication)
   self-signed.badssl.com | expired.badssl.com | mixed.badssl.com | rc4.badssl.com | hsts.badssl.com
4. howsmyssl.com Browser SSL check
5. scan.nextcloud.com Nextcloud Security Scan
6. observatory.mozilla.org Observatory by Mozilla
7. transparencyreport.google.com/safe-browsing/search Google Safe Browsing-Website Status
8. xmlrpc.eritreo.it WordPress XMLRPC Test
9. pentest-tools.com Misc. Pentests

Website Checks

1. hstspreload.org Check HSTS preload status and eligibility
2. brokenlinkcheck.com Broken Link Checker
3. copyscape.com Search for copies of your page on the web
4. similarweb.com Analyze website traffic
5. webbkoll.dataskydd.net Website privacy check: http-headers, meta referrer, first & third party cookies and requests, CSP
6. securityheaders.com Security header check
7. redbot.org HTTP header check
8. realfavicongenerator.net Favicon checker
9. richpreview.com Metatag analyzer for website preview in chat apps and social networks

Website SSL Checks

1. ssllabs.com Webserver SSL check
2. htmlyse.com DNS/SSL/TLS/HTTP Header Report
3. ssldecoder.org Checks the SSL/TLS configuration of a server
4. htbridge.com Test SSL/TLS security and implementation for compliance with PCI DSS requirements, HIPAA guidance and NIST guidelines
5. digicert.com DigiCert® SSL Installation Diagnostics Tool
6. sslanalyzer.comodoca.com Comodo SSL Analyzer
7. wormly.com/test_ssl Wormly SSL Web Server Test
8. whatsmychaincert.com SSL Chain Certificate Checker and Generator

Website Pagespeed Checks

1. developers.google.com/speed/pagespeed/insights Google PageSpeed Insights
2. search.google.com/test/mobile-friendly Google Mobile-Friendly Test
3. testmysite.withgoogle.com Mobile Speed Test
4. tools.pingdom.com Pingdom Website Speed Test
5. webpagetest.org Website Performance Test
6. gtmetrix.com Webpage Performance report

Mailserver Checks

1. mxtoolbox.com Multiple RBL lookups, SPF check, DKIM check
2. spf.myisp.ch SPF record checker
3. multirbl.valli.org RBL lookup
4. abuseat.org CBL lookup
5. whatismyipaddress.com Blacklist check

Multifarious

1. uitest.com Web development tools and site check
2. seocentro.com Various SEO and SEM tools
3. viewdns.info Various lookups & reverse lookups
4. reverseip.domaintools.com Reverse IP lookup
5. enumquery.com ENUM lookups
6. archive.org/web Internet wayback machine, lookup and add domain
7. geoimgr.com Geotag photos online
8. tinypng.com Compress images for websites: PNG, GIF, JPG
9. duckdns.org Free dynamic DNS