Bulk NS Checker
Check Nameservers of multiple domains directly from each TLD's authoritative nameserver (no cache).
What is the Μαζικός έλεγχος NS?
The Μαζικός έλεγχος NS checks the Nameservers (NS records) of multiple domains simultaneously, directly from the authoritative nameserver of each TLD — without DNS cache. It is ideal for domain resellers, hosting providers, and sysadmins who manage many domains.
What are Nameservers (NS records)?
Nameservers are the DNS servers that "know" all the DNS records for a domain. Every domain has at least 2 NS records (primary + secondary). When you change hosting, you are essentially changing the Nameservers to point to the new DNS provider.
Why is "without cache" important?
Regular DNS lookups use cached results that may be outdated (up to 48 hours). This tool queries the registry/root nameserver of each TLD directly, so you see the real, current state of the domain's NS records.
How do I use this tool?
- Enter one domain per line in the text area (up to 30 domains).
- Click "Check NS" — the tool performs an authoritative query for each domain.
- View the NS records and the identified provider (Cloudflare, GoDaddy, cPanel, etc.).
- Click Copy CSV to export the results.
When should I use it?
- Domain migration: Verify that NS records changed correctly after a transfer.
- Bulk domain audit: See which domains still have the old NS records.
- Provider identification: Find out who manages the DNS for each domain.
- Post-deployment verification: Make sure NS propagation has completed.