SEO and Marketing Tools
Bulk Dead Domain Checker
Paste competitor or prospect domains and check which ones fail DNS from the browser, with CSV export for dead-domain prospecting.
Paste domains and click Check DNS to find domains that fail browser DNS lookup.
ResultsDirect Answer
Use this bulk dead domain checker to paste a list of domains and flag domains that fail DNS lookup. It runs DNS-over-HTTPS in the browser and exports CSV. Browser security prevents it from reading arbitrary page status, redirects, or parked-domain HTML, so use the local script when you need full HTTP and parking checks.
Browser-Safe Dead Domain Checks
This tool covers the part of dead-domain research that can safely run in a browser: DNS resolution. It is useful for checking competitor lists, old tool directories, prospect domains, and possible dead backlink targets before deeper verification.
How to Use Bulk Dead Domain Checker
- Open the tool on this page.
- Enter or paste your input in the field provided.
- Review the result shown on the page, then copy or download it.
Reference
| Feature | Details |
|---|---|
| Purpose | Complete the utility task shown on this page. |
| Input | The value or content requested by the tool. |
| Result | The generated or processed output shown on the page. |
| Best for | Quick browser-based utility work. |
| Category | SEO and Marketing Tools |
| Works on | Desktop, tablet, and mobile browsers |
Frequently Asked Questions
Can this detect parked domains?
Not reliably in the browser. Most websites block cross-origin HTML reads, so parked-page text detection needs a local script or server-side checker. This browser tool flags DNS failures and provides CSV output.
What counts as dead here?
A domain is marked dead when DNS-over-HTTPS cannot find A, AAAA, or CNAME records. Domains with DNS records are marked DNS OK and should be checked manually or with the local script for HTTP status, redirects, and parking.