DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
certskills.fr runs on Cloudflare, with DNS by Cloudflare and email via Proton.
- Hosting network
- CloudflareAS13335Cloudflare
- Managed DNS
- Cloudflare
- Proton
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 2,778,983 other sites on Cloudflare.
Recently changed networks: AS16276 → Cloudflare (AS13335) (as of Sep 12, 2026)
The apex and www are the same hosting — the apex via A records.
DNS Records for certskills.fr
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| certskills.fr | NS | 0 | earl.ns.cloudflare.com | |
| certskills.fr | NS | 0 | sonia.ns.cloudflare.com | |
| certskills.fr | MX | 0 | 10 | mail.protonmail.ch |
| certskills.fr | MX | 0 | 20 | mailsec.protonmail.ch |
| certskills.fr | SOA | 1800 | earl.ns.cloudflare.com dns.cloudflare.com 2413020507 10000 2400 604800 1800 | |
| certskills.fr | AAAA | 0 | 2606:4700:3036::ac43:d6ae | |
| certskills.fr | AAAA | 0 | 2606:4700:3030::6815:25e7 | |
| certskills.fr | A | 0 | 104.21.37.231 | |
| certskills.fr | A | 0 | 172.67.214.174 | |
| certskills.fr | TXT | 0 | protonmail-verification=4634a4df82e8d766ca98f7aafedd11049260108e | |
| certskills.fr | TXT | 0 | v=spf1 include:_spf.protonmail.ch ~all | |
| www.certskills.fr | A | 0 | 104.21.37.231 | |
| www.certskills.fr | A | 0 | 172.67.214.174 | |
| www.certskills.fr | AAAA | 0 | 2606:4700:3036::ac43:d6ae | |
| www.certskills.fr | AAAA | 0 | 2606:4700:3030::6815:25e7 |
Get alerted the moment certskills.fr's DNS changes
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain