Defaults.Exposed › Compare

How Defaults.Exposed compares

Most tools check one thing — DMARC, or headers, or TLS. Defaults.Exposed grades your domain A–F across email, TLS, web and DNS in one private, owner-only check, and ranks it against a census of millions. Here's how that stacks up against the popular single-purpose tools.

• The best free domain security checker in 2026 (and how to choose) — Most free checkers test one thing — email, or headers, or TLS. Here's how to pick one, and why a single A–F grade across every check is the fastest way to know where your domain stands.
• Defaults.Exposed vs EasyDMARC: email auth, plus everything else — EasyDMARC is built around email authentication and DMARC monitoring. Defaults.Exposed grades your email auth alongside TLS, web and DNS in one A–F score, with a percentile and free per-failure fixes.
• Defaults.Exposed vs MXToolbox: which domain checker should you use? — MXToolbox is the go-to for deep DNS, MX and blacklist lookups. Defaults.Exposed turns those signals into one A–F grade across email, TLS, web and DNS — and ranks you against millions of domains.
• Defaults.Exposed vs SecurityHeaders.com: beyond HTTP headers — SecurityHeaders.com grades your HTTP response headers. Defaults.Exposed includes that and grades email authentication, TLS and DNS too — one A–F score for your whole domain.

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