# Web Security Audit

> Free security and web analysis tools. Check SSL, passwords, headers, and more.

Every tool and article on Web Security Audit is free to use — no sign-up required. The links below are the primary, canonical resources on this site.

## Tools

- [SSL Certificate Checker](https://safewebtools.com/tool/ssl-certificate-checker/): Check SSL certificate validity, expiration date, issuer, and chain of trust. Detect common SSL configuration problems.
- [Password Strength Tester](https://safewebtools.com/tool/password-strength-tester/): Test password strength against common attacks. See estimated crack time and get suggestions for stronger passwords.
- [Website Speed Test](https://safewebtools.com/tool/website-speed-test/): Test your website loading speed and performance. Get scores for mobile and desktop with specific optimization recommendations.
- [HTTP Header Checker](https://safewebtools.com/tool/http-header-checker/): Inspect HTTP response headers for any URL. Check security headers, caching, CORS, and server configuration details.
- [DNS Lookup](https://safewebtools.com/tool/dns-lookup/): Look up DNS records for any domain — A, AAAA, MX, CNAME, TXT, NS, and SOA records with TTL information.
- [Whois Lookup](https://safewebtools.com/tool/whois-lookup/): Look up domain registration details — owner, registrar, creation date, expiration, and nameservers. Check domain availability.
- [Robots.txt Checker](https://safewebtools.com/tool/robots-txt-checker/): Check and validate your robots.txt file. Verify crawler directives, find errors, and test URL accessibility rules.
- [Sitemap Generator](https://safewebtools.com/tool/sitemap-generator/): Generate XML sitemaps for your website. Crawl your site and create a properly formatted sitemap for search engines.
- [Open Graph Checker](https://safewebtools.com/tool/open-graph-checker/): Check Open Graph and Twitter Card meta tags for any URL. Preview how your pages appear when shared on social media.
- [Redirect Checker](https://safewebtools.com/tool/redirect-checker/): Trace redirect chains for any URL. See all 301/302 redirects, final destination, and identify redirect loops or issues.
- [Password Strength Checker](https://safewebtools.com/tool/password-strength-checker/): Free in-browser password strength checker. Entropy estimation, crack-time feedback, and pattern detection. Your password never leaves your device.
- [Secure Password Generator](https://safewebtools.com/tool/secure-password-generator/): Free secure password generator using the Web Crypto API. Adjust length (8–128), toggle uppercase, numbers, symbols, and exclude ambiguous characters …
- [Passphrase Generator (Diceware)](https://safewebtools.com/tool/diceware-passphrase-generator/): Free Diceware passphrase generator using cryptographically secure random numbers. Shows entropy bits, strength rating, and crack-time estimate for ea…
- [Have-I-Been-Exposed Hash Checker](https://safewebtools.com/tool/password-hash-checker/): Hash your password with SHA-1 locally and extract the 5-char k-anonymity prefix for HIBP breach lookups — nothing ever leaves your device.
- [Bcrypt & SHA Hash Generator](https://safewebtools.com/tool/hash-generator/): Free in-browser hash generator. Compute MD5, SHA-1, SHA-256, and SHA-512 checksums instantly. Nothing leaves your device — 100% private.
- [Two-Factor (TOTP) Code Generator](https://safewebtools.com/tool/totp-2fa-code-generator/): Free browser-based TOTP 2FA code generator. Enter any Base32 secret key and view live 6-digit codes with countdown timer. No server, 100% local compu…
- [QR Code Generator for Wi-Fi & Secrets](https://safewebtools.com/tool/wifi-qr-code-generator/): Free offline QR code generator for Wi-Fi passwords, secrets & URLs. Runs entirely in your browser — nothing is sent to any server. Download as PNG in…
- [Base64 & URL Encoder/Decoder](https://safewebtools.com/tool/base64-url-encoder-decoder/): Free Base64, URL & HTML entity encoder/decoder. Works entirely in your browser — no data sent to servers. Supports Base64 URL-safe mode, bulk decode,…
- [EXIF Metadata Viewer & Stripper](https://safewebtools.com/tool/exif-metadata-stripper/): View hidden GPS, device, and timestamp EXIF metadata in your photos, then download a clean stripped copy. 100% local processing — nothing leaves your…
- [JWT Token Decoder](https://safewebtools.com/tool/jwt-token-decoder/): Decode JWT tokens instantly in your browser. Inspect header, payload, expiry, algorithm, and all claims without sending your token to any server.
- [Secure Note Self-Destruct Link](https://safewebtools.com/tool/secure-note-encrypter/): Encrypt private notes with AES-256-GCM in your browser. Generate a shareable encrypted link — no server, no storage, passphrase-protected and zero-kn…
- [Privacy Footprint Analyzer](https://safewebtools.com/tool/browser-privacy-checker/): Analyze your browser's privacy footprint: detect canvas fingerprinting, WebRTC leaks, font enumeration, timezone tracking, and your uniqueness score …

## Articles

- [Long-Term US Number From Abroad: The g100.us Guide](https://safewebtools.com/long-term-us-number-abroad-g100us/): Get a long-term US number from abroad with g100.us: flat pricing from $4/week, instant activation, calls+SMS+WhatsApp in one number, 100+ countries.
- [Cheap US Business Number: Get One in Seconds with g100.us](https://safewebtools.com/cheap-us-business-number-g100us/): Need a cheap US number for business? g100.us gives you calls, SMS & WhatsApp on one line from $4/week, live in seconds, no contracts.
- [The Pre-Travel Digital Security Checklist](https://safewebtools.com/pre-travel-digital-security-checklist/): Lock down your digital life before any trip. This pre-travel security checklist covers encryption, backups, VPNs, border crossings, and more.
- [Stop Reusing Passwords: Why One Leak Becomes Ten Hacked Accounts](https://safewebtools.com/stop-reusing-passwords/): Learn how credential stuffing attacks turn one leaked password into multiple hacked accounts — and get a practical, stress-free plan to fix your pass…
- [The Day a Small Business Got Ransomware: A Post-Mortem](https://safewebtools.com/small-business-ransomware-postmortem/): How Meridian Print Co. lost $34,000 to ransomware — and what the post-mortem reveals about backups, RDP exposure, and network segmentation for small …
- [Answering the Most Common Questions About VPNs](https://safewebtools.com/common-questions-about-vpns/): What does a VPN actually protect — and what doesn't it? We answer the most common VPN questions: free vs paid risks, logging policies, and when it's …
- [Your Photos Are Leaking Your Home Address: The EXIF Privacy Problem](https://safewebtools.com/photos-leaking-location-exif/): GPS metadata in your photos can expose your home address. See which platforms strip EXIF data and which don't — plus simple tools to protect your loc…
- [Phishing Explained for Absolute Beginners](https://safewebtools.com/phishing-explained-for-beginners/): Learn what phishing is, how to spot fake links and emails, and exactly what to do if you clicked a phishing link — explained simply for beginners.
- [How Password Hashing Actually Works: Salts, Bcrypt, and Rainbow Tables](https://safewebtools.com/how-password-hashing-works/): Learn how password hashing, salting, bcrypt, and Argon2 protect credentials. Technical explainer covering rainbow tables, key stretching, and why pla…
- [7 Privacy Settings You Should Change on Your Phone Right Now](https://safewebtools.com/7-phone-privacy-settings-to-change/): 7 actionable privacy settings to change on your iPhone or Android phone right now — location, ad tracking, microphone, lock screen, and more.
- [I Checked My Email Against Every Breach Database. Here's What I Found](https://safewebtools.com/i-checked-my-email-against-breaches/): A first-person account of checking every email address against breach databases, discovering 36 exposures, and the step-by-step cleanup that followed.
- [Password Managers Compared: Bitwarden vs 1Password vs Built-In Browser Vaults](https://safewebtools.com/password-managers-compared/): Bitwarden vs 1Password vs browser vaults: compare security models, pricing, cross-platform support, and self-hosting options to find the best passwor…
- [How to Set Up Two-Factor Authentication on Every Important Account](https://safewebtools.com/set-up-two-factor-authentication/): Learn how to set up two-factor authentication on Gmail, banking, and social accounts. Compare SMS, authenticator apps, and hardware keys with step-by…
- [What Makes a Password Actually Strong (And Why Length Beats Complexity)](https://safewebtools.com/what-makes-a-password-strong/): Why length beats complexity in passwords: crack-time comparisons, entropy explained, and what NIST actually recommends now. Debunking the special-cha…
- [Open Graph Tags — Make Your Content Look Great on Social Media](https://safewebtools.com/open-graph-tags-social-media-guide/): Complete DNS guide for website owners. Record types, propagation, troubleshooting, and DNS security best practices.
- [Robots.txt Guide — How to Control Search Engine Crawling](https://safewebtools.com/robots-txt-guide-control-crawling/): HTTP security headers explained. Configure CSP, HSTS, X-Frame-Options, and other headers to protect your website.
- [DNS Records Explained — A Complete Guide for Webmasters](https://safewebtools.com/dns-records-explained-complete-guide/): Website speed optimization guide. Core Web Vitals explained, image optimization, caching, and performance best practices.
- [Website Speed Optimization — 10 Tips for Faster Loading](https://safewebtools.com/website-speed-optimization-10-tips/): Password security guide. How passwords are cracked, what makes a strong password, and best practices for password management.
- [SSL Certificate Guide — Why HTTPS Matters for Your Website](https://safewebtools.com/ssl-certificate-guide-https-matters/): SSL certificate guide — types, installation, troubleshooting, and why HTTPS matters for security and SEO rankings.

## About & Policies

- [About Us](https://safewebtools.com/about-us/)
- [Contact Us](https://safewebtools.com/contact-us/)
- [Privacy Policy](https://safewebtools.com/privacy-policy/)
- [Terms of Service](https://safewebtools.com/terms-of-service/)
- [Disclaimer](https://safewebtools.com/disclaimer/)
- [Blog](https://safewebtools.com/blog/)
- [Responsible Use Policy](https://safewebtools.com/responsible-use/)

## Notes

- Full URL list: https://safewebtools.com/sitemap.xml
- Content is original and maintained by Web Security Audit. Attribution is appreciated when cited.