DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
certbot.info runs on Fastly.
- Hosting network
- FastlyAS54113Fastly
- Managed DNS
- Self-hosted / other
- None
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- Set
Sits alongside 203,765 other sites on Fastly. Stable here since we started watching (Sep 13, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to certbot.info.
DNS Records for certbot.info
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| certbot.info | TXT | 0 | v=spf1 a -all | |
| certbot.info | SOA | 43200 | ns1.eff.org hostmaster.eff.org 2025010201 3600 15 1209600 43200 | |
| certbot.info | A | 0 | 151.101.192.201 | |
| certbot.info | A | 0 | 151.101.128.201 | |
| certbot.info | A | 0 | 151.101.64.201 | |
| certbot.info | A | 0 | 151.101.0.201 | |
| certbot.info | CAA | 0 | 0 iodef mailto:caa@eff.org | |
| certbot.info | CAA | 0 | 0 issue letsencrypt.org | |
| certbot.info | NS | 0 | ns1.eff.org | |
| certbot.info | NS | 0 | ns4.eff.org | |
| certbot.info | NS | 0 | ns2.eff.org | |
| www.certbot.info | CNAME | 0 | certbot.info | |
| www.certbot.info | TXT | 0 | v=spf1 a -all | |
| www.certbot.info | SOA | 43200 | ns1.eff.org hostmaster.eff.org 2025010201 3600 15 1209600 43200 | |
| www.certbot.info | NS | 0 | ns4.eff.org | |
| www.certbot.info | NS | 0 | ns2.eff.org | |
| www.certbot.info | NS | 0 | ns1.eff.org | |
| www.certbot.info | CAA | 0 | 0 issue letsencrypt.org | |
| www.certbot.info | CAA | 0 | 0 iodef mailto:caa@eff.org | |
| www.certbot.info | A | 0 | 151.101.192.201 | |
| www.certbot.info | A | 0 | 151.101.64.201 | |
| www.certbot.info | A | 0 | 151.101.128.201 | |
| www.certbot.info | A | 0 | 151.101.0.201 |
Get alerted the moment certbot.info's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch certbot.info continuously, notifying you the moment anything moves across all three signals:
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