---
title: "Free link safety checker"
url: "https://lookvalid.com/tools/is-this-link-safe.md"
canonical_url: "https://lookvalid.com/tools/is-this-link-safe"
last_updated: "2026-10-17"
type: "tool"
summary: "Check whether a link points to a domain on a public warning list of malicious sites, for free."
related: ["https://lookvalid.com/docs/api/link-safety.md"]
---

# Free link safety checker

Check whether a link points to a domain on a public warning list of malicious sites, for free.

Paste a web address. We check its domain against a public warning list of malicious sites and show you which lists were checked.

## Facts

- Free, no account needed. Rate limited per visitor.
- Runs the `link-safety` product. The same lookup through the API costs 1 credit.
- API reference: [link-safety](https://lookvalid.com/docs/api/link-safety.md)

We take the domain from the address, along with its parent domains, and compare them with a published warning list of malicious domains. The page itself is never opened, so nothing on it can run.

The result names every list used, the date of its data and its licence. If a list could not be read, it appears under the lists that could not be checked.

## Related

- [Link Safety Check reference](https://lookvalid.com/docs/api/link-safety.md)