Curated list of useful links, tools and resources for Web development and DNS
You can also view it in my website. It is another way for presenting the information.
- Cloud service providers
- AWS
- Azure
- GCP
- Cloudflare
- IBM Cloud
- Oracle Cloud
- Akamai
- CI/CD
- CI/CD Service providers
- Service Mesh
- Website performance, SEO and security (online tools)
- WebPageTest - Their waterfall graph and connection graph is useful for optimizing your loading speed
- Techinical SEO - This site has several tools for SEO
- Freeformatter - This site has formatters, validators, encoders, decoders minifiers and converters
- KeyCDN - Several tools provided, website speed test and other network tools
- Uptrends - Website, CDN speed test and other tools
- Pingdom - Website speed test
- Scanning
- Dareboost - Provides recommendation
- Nibbler - Provides recommendation, free version only scan maximum of five links automatically from your website
- Lighthouse Metrics - Website that performs Google Lighthouse checking in browser
- Google Pagespeed Insights
- Mobile friendly checking by Google
- A project using Server-Daten Scan and check a LOT of things including HTTPS, cookies, CSP, DNS, port checking and etc. It would took minutes. Use with caution
- HTTP/3
- HTTP3check.net by LiteSpeed Tech - Check if a website support HTTP/3
- Check if your browser support HTTP/3 - By Cloudflare
- Cloudflare
- Check your browser connection to Cloudflare - Display your IP, WARP status and etc.
- Security focused
- Mozilla Observatory - Combines several third party scanning tools and display it. Recommended
- Immuniweb Community Free Security Tests - Free web/domain/SSL scan
- Sucuri - Free website security check & malware scanner
- Website and E-mail scanning - Initative of the Internet Community and the Dutch government
- Check if your browser has enabled GPC (Global Privacy Control)
- Check if your Chrome browser is FLOCED
- Scanning HTTP headers and CSP
- Webbkoll - Checking CSP with detail explanation about GDPR and settings. Also support self-hosting. Recommended
- Security Headers Sponsored by Report URI
- Analyse CSP by report-uri
- CSP Evaluator by Google
- Redbot
- Gift of Speed - Display a list about the maximum cache age of the webpage, also have other tools in that website
- Test CORS - You should open browser developer tools when testing against an URL for CORS
- Cookies
- Webcookies (site is down) - Scan what cookies are used and give recommendation
- Find out what technologies are used in a website
- JSON-LD
- Verification
- Visualisation of strucuted data by Classy Schema - Recommended
- Rich Results Test with Rich Snippet Preview - Recommended, by Google
- Schema Validator - Replaced an old Google online tool
- Structured Data Linter - HTTPS of this website does not work correctly, browser giving out warning about hostname problem
- Generator
- Verification
- Robots.txt
- Monitoring and Reporting
- Security and Error reporting
- Sentry - Have free plan suitable for dev or small website. Also support self hosting but not reselling it (BSL license)
- Report-URI - Have free plan suitable for dev or small website
- Security and Error reporting
- Page preview
- Metatags.io - Preview how a webpage look like in Google Search, Facebook, Twitter, Linkedin, Pinterest and Slack
- Google, some tools are usable but not displayed in the search console by default
- PWA
- HTML
- Validator
- W3C Markup Validation Service - An online tool
- html5validator, written in Python - Command line tool
- CSS Validator - An online tool
- Can I Use - Browser support table for modern web technologies
- Validator
- Front-end playground for testing code or demo
- CDN
- Web PKI
- Certificate Transparency
- Check CT database By Google - Online tool
- Censys.io - Online tool for checking hostname or certificates history
- Online utility to check if the web server is returning correct certificate chains - By DigiCert
- Check the TLS settings supported by your browser by SSLLabs
- Certificate Transparency
- JavaScript
- Online tools
- Check DNS records from a specific DNS
- Troubleshooting DNSSEC
- WHOIS
- ICANN Whois
- Versign Whois - Cloudflare said ICANN is cached and may have delay, and Versign should be used instead. But this Whois server does not support all TLDs
- Flushing public DNS cache of some vendors