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Domain reputation

Domain reputation is a score that mail providers, browsers, and security tools assign to a domain based on its history, deciding whether to trust, flag, or block its mail and links.

Updated 1 min read

How it works

Reputation is built from signals like spam complaints, authentication results, age, and whether the domain has appeared on blocklists. A good reputation gets your mail delivered and your links trusted; a poor one sends you to spam or behind warnings. Abuse from a lookalike domain can spill over and dent how recipients perceive your brand even when your own domain is clean.

Recovering a damaged reputation is slow, so prevention matters.

How it relates to brand impersonation

Impersonation hurts the trust your domain has earned. Removing the lookalikes and phishing that abuse your name protects the reputation your real domain depends on.

How nebty helps

nebty protects the reputation tied to your brand by detecting and removing the lookalike domains and phishing that would otherwise drag it down. Monitoring is where this starts.

What builds and breaks reputation

Domain reputation is scored continuously by mail providers, browsers, and security vendors, and you rarely see the number directly; you see its effects in whether your mail lands in the inbox and your links open without a warning. It builds slowly from consistent authenticated sending, low spam-complaint rates, and a clean history, and it drops fast after a spam spike, a malware incident, or a blocklist appearance. The part many teams miss is spillover: when a lookalike domain abuses your name for phishing, recipients who get burned associate the harm with your brand, and aggressive blocklisting of the lookalike can bleed into how filters treat anything resembling it. Protecting reputation is therefore not only about your own sending hygiene; it includes finding and removing the impersonators trading on your name.

Domain monitoring is the continuous tracking of newly registered and changed domains that resemble your brand, so you can spot lookalikes and abuse early, before they are used against you.

Domain abuse & monitoring

Blacklisting is getting a malicious domain or URL added to security blocklists, such as Google Safe Browsing, so browsers, email providers, and security tools warn or block users who try to reach it.

Takedown & response

Email spoofing is forging the sender address of an email so it appears to come from a trusted domain. It is the technical basis for most phishing and BEC.

Phishing & email

Domain spoofing is faking a trusted domain, in a website URL or an email sender address, to make fraudulent content appear to come from a legitimate brand.

Domain abuse & monitoring

WHOIS is the public directory of domain registration data, showing details like the registrar, creation date, and, where not redacted, the registrant, used to investigate and report abusive domains.

Domain abuse & monitoring

New gTLD abuse is the exploitation of the many newer top-level domains, such as .shop, .app, .xyz, and .top, to register cheap lookalike and scam domains at scale.

Domain abuse & monitoring

Domain suspension is when a registrar or registry disables a domain, usually for abuse or a policy violation, so it stops resolving and the site and email attached to it go dark.

Takedown & response

A subdomain takeover is when an attacker claims a subdomain you no longer use but still point to a third-party service, letting them host content on your real domain.

Domain abuse & monitoring
Free report

See who is impersonating your brand

The free nebty report scans the web for lookalike domains and fake profiles targeting your brand, with no obligation.

Benedikt Scheungraber

Benedikt Scheungraber

Co-Founder & CEO

Questions about brand protection, or want to see nebty in action? I’m happy to walk you through it myself and talk openly about whether we can help with your case.