💀 Breaches
🌐 Attack Surface
📧 Email Security
🔒 Security Headers
⚠️ Threat Intel
📂 Exposed Files
Enter any domain for an instant security exposure report. Checks data breaches, attack surface, email authentication, security headers, threat intelligence, and exposed files — all from public sources, no signup required.
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Exposed is a free, instant domain security scanner that combines 15+ public intelligence sources into a single comprehensive exposure report. Think of it as a free alternative to commercial security rating platforms like SecurityScorecard, BitSight, or UpGuard — but with immediate results and zero signup.
The overall A through F grade is a weighted composite of six category scores. Breach exposure and attack surface carry the highest weight because they represent confirmed or high-probability compromise vectors. Email authentication and security headers are weighted moderately as preventive controls. Threat intelligence and exposed files contribute to the final score as indicators of ongoing or historical risk.
The best free data breach checkers in 2026 are Have I Been Pwned and Mozilla Monitor for everyday email checks, with DeHashed and Intelligence X for deeper investigative searches and Hudson Rock for infostealer-malware exposure. The ranked list below notes what each covers and what is genuinely free. Use these only to check your own data (or data you are authorised to investigate) — using leaked credentials to access someone else's account is illegal.
For individuals, start with Have I Been Pwned and Mozilla Monitor, then check Hudson Rock for infostealer exposure; change passwords and enable two-factor authentication on anything flagged. For a whole domain or business, run our Exposed scanner above, and pivot to our email lookup to map exposed addresses.
You cannot (and should not) browse the dark web to look for your own email — but you can check for free whether your address has turned up in the breach dumps, combolists, and stealer logs that circulate there. "On the dark web" almost always means your email appeared in leaked data being traded on forums and markets, not that someone is actively targeting you.
How to check, for free:
If your email turns up, the fix is straightforward: change the password anywhere you reused it, turn on two-factor authentication, and consider ongoing monitoring. See our ranked breach checkers for the full list. These tools tell you that you are exposed so you can secure your accounts — they never hand out the leaked password itself.
To check your digital footprint, investigate yourself the way an analyst would: search your name, email, usernames, and phone across search engines, breach checkers, people-search sites, and reverse-image tools. This free self-audit shows exactly what is exposed so you can decide what to remove.
Search your name in quotes plus a city, run your email through Have I Been Pwned and the Exposed scanner, check people-search sites like TruePeopleSearch, run your usernames through a username search, and reverse-image your profile photos. Together these show what a stranger can find about you for free.
Use free tools that check breach and leak data rather than browsing the dark web yourself: Have I Been Pwned and Mozilla Monitor show which breaches your address appears in, and Hudson Rock checks infostealer-malware logs. If you appear, change reused passwords and enable two-factor authentication.
It usually means your address showed up in a data breach, combolist, or stealer log being traded on dark-web forums — not that you are being personally targeted. The risk is credential stuffing and phishing, so secure any account where you reused the exposed password.
Have I Been Pwned is the gold standard — free, trusted, and able to check an email or phone number plus individual passwords. Mozilla Monitor adds free ongoing monitoring for up to five addresses, while DeHashed and Intelligence X go deeper for investigators.
Enter your email at Have I Been Pwned and Mozilla Monitor for a fast first pass, then run a deeper search with DeHashed or Intelligence X. To catch stolen credentials from malware infections, check Hudson Rock. Change passwords and enable two-factor authentication on anything that appears in a breach.
This scanner checks a domain against breach databases and probes for misconfigurations and leaked data — the same exposure an attacker would find — so you can fix it first. Free and in-browser.
Exposed performs six categories of security checks: data breach exposure via HIBP, attack surface mapping (subdomains, open ports, CVEs), email authentication (SPF, DKIM, DMARC, DNSSEC), HTTP security headers (HSTS, CSP, X-Frame-Options, etc.), threat intelligence (OTX, Feodo, URLhaus), and exposed sensitive files via the Wayback Machine. Each category is graded and combined into an overall A through F security score.
Yes. Exposed provides similar domain security visibility using entirely free, no-auth public APIs. While commercial platforms like SecurityScorecard and BitSight offer deeper enterprise features, Exposed gives instant results without signup, contracts, or per-scan fees.
No. Exposed only queries public databases and passive intelligence sources. It does not actively probe the target's servers, send packets, or interact with the domain directly except for DNS lookups. All data comes from pre-indexed sources like Shodan, HIBP, and certificate transparency logs.