THE RECORDS BEHIND THE NAME
DNS lookup.
Explore resource records, mail routing and reverse DNS.
Public IPs automatically use PTR. Common records queries A, AAAA, MX, NS, CNAME, TXT, SOA and CAA separately.
Querying DNS records…
DNS
21 answer recordscerfacs.fr
ANOERRORAD no
AAAANOERROR · no answersAD no
MXNOERRORAD noEDE(18): Prohibited
NSNOERRORAD noEDE(18): Prohibited
CNAMENOERROR · no answersAD no
TXTNOERRORAD noEDE(18): Prohibited
SOANOERRORAD noEDE(18): Prohibited
CAANOERRORAD noEDE(18): Prohibited
AD indicates that the resolver reports DNSSEC-validated data. “AD no” can also mean the zone is unsigned. NXDOMAIN is a DNS result, not a domain-availability check.
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| A | cerfacs.fr | 86500 | 138.63.8.11 | IP WHOIS → |
| MX | cerfacs.fr | 86500 | 10 mx1.cerfacs.fr. | DNS → |
| MX | cerfacs.fr | 86500 | 20 mx2.cerfacs.fr. | DNS → |
| NS | cerfacs.fr | 86500 | dns.inria.fr. | DNS → |
| NS | cerfacs.fr | 86500 | hal.cerfacs.fr. | DNS → |
| NS | cerfacs.fr | 86500 | zephyr.cerfacs.fr. | DNS → |
| NS | cerfacs.fr | 86500 | talisker.cerfacs.fr. | DNS → |
| TXT | cerfacs.fr | 86500 | "HARICA-78fb0HAa4j4Lbn2YHjn" | — |
| TXT | cerfacs.fr | 86500 | "HARICA-XCBd7G9nrfUgwf53O9N" | — |
| TXT | cerfacs.fr | 86500 | "apple-domain-verification=tqE11WuqaK34II0z" | — |
| TXT | cerfacs.fr | 86500 | "v=spf1 ip4:138.63.2.56 ip4:138.63.2.84 ip4:138.63.2.86 a mx ~all" | — |
| SOA | cerfacs.fr | 86500 | hal.cerfacs.fr. dnsmaster.cerfacs.fr. 2023072420 14400 3600 604800 86400 | — |
| CAA | cerfacs.fr | 86500 | 0 iodef "mailto:dnsmaster@cerfacs.fr" | — |
| CAA | cerfacs.fr | 86500 | 0 issue "digicert.com" | — |
| CAA | cerfacs.fr | 86500 | 0 issue "harica.gr" | — |
| CAA | cerfacs.fr | 86500 | 0 issue "letsencrypt.org" | — |
| CAA | cerfacs.fr | 86500 | 0 issue "sectigo.com" | — |
| CAA | cerfacs.fr | 86500 | 0 issuewild "digicert.com" | — |
| CAA | cerfacs.fr | 86500 | 0 issuewild "harica.gr" | — |
| CAA | cerfacs.fr | 86500 | 0 issuewild "letsencrypt.org" | — |
| CAA | cerfacs.fr | 86500 | 0 issuewild "sectigo.com" | — |
Authority records · 1
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| SOA | cerfacs.fr | 86400 | hal.cerfacs.fr. dnsmaster.cerfacs.fr. 2023072420 14400 3600 604800 86400 | — |
Results reflect the public DNS view and recursive caching; they may differ from your local network. TXT strings retain their DNS quoting. Common records does not enumerate every name or record in a zone.