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.
Most domain-security checkers answer a narrower question than people assume. Some test one record type, some test only what a mail server would see, and most give a verdict with no way to tell whether your result is normal or unusual. That last part is the gap these comparisons are about.
We run the same 34 checks across the whole measurable internet every month, so a result here comes with a denominator: not just "you fail DMARC enforcement" but how many of the 376.9 million graded domains fail it too, and where your TLD sits. Each comparison below is specific about what the other tool does well — several are better than us at their one job.
- 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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