DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
isc.org runs on Fastly, with email configured.
- Hosting network
- FastlyAS54113Fastly
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- Set
Sits alongside 203,765 other sites on Fastly. Stable here since we started watching (Jul 17, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for isc.org
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| isc.org | A | 0 | 151.101.3.42 | |
| isc.org | A | 0 | 151.101.131.42 | |
| isc.org | A | 0 | 151.101.195.42 | |
| isc.org | A | 0 | 151.101.67.42 | |
| isc.org | MX | 0 | 5 | mx.pao1.isc.org |
| isc.org | MX | 0 | 10 | mx.ams1.isc.org |
| isc.org | AAAA | 0 | 2a04:4e42::810 | |
| isc.org | AAAA | 0 | 2a04:4e42:400::810 | |
| isc.org | AAAA | 0 | 2a04:4e42:200::810 | |
| isc.org | AAAA | 0 | 2a04:4e42:600::810 | |
| isc.org | SOA | 3600 | ns-int.isc.org hostmaster.isc.org 2026100761 7200 3600 24796800 3600 | |
| isc.org | CAA | 0 | 0 iodef mailto:hostmaster@isc.org | |
| isc.org | CAA | 0 | 0 issuewild trust-provider.com | |
| isc.org | CAA | 0 | 0 issue letsencrypt.org | |
| isc.org | CAA | 0 | 0 issue sectigo.com | |
| isc.org | CAA | 0 | 0 issuewild comodoca.com | |
| isc.org | CAA | 0 | 0 issue certainly.com | |
| isc.org | CAA | 0 | 0 issue comodoca.com | |
| isc.org | CAA | 0 | 0 issue Digicert.com | |
| isc.org | CAA | 0 | 0 issuewild sectigo.com | |
| isc.org | CAA | 0 | 0 issue pki.goog | |
| isc.org | CAA | 0 | 0 issue globalsign.com | |
| isc.org | CAA | 0 | 0 issuewild globalsign.com | |
| isc.org | CAA | 0 | 0 issuewild certainly.com | |
| isc.org | CAA | 0 | 0 issuewild usertrust.com | |
| isc.org | TXT | 0 | _globalsign-domain-verification=ckxXdoIq27XGYE4ATbBYQOBeV7PTJWRxYe-PXDyzMX | |
| isc.org | TXT | 0 | google-site-verification=grXE1SbXWNed6C5yQgI8fwxgucE0DppnbICbhZr9qG0 | |
| isc.org | TXT | 0 | google-site-verification=6v652rgkk_kI6Ky32iGdxqXjQ4_BAd5DYKsrnRXKUiE | |
| isc.org | TXT | 0 | MS=2583E0E0DCCBF33EC6DAFF0B4BFBAF78FFCF7AD0 | |
| isc.org | TXT | 0 | F8C4EB9011 | |
| isc.org | TXT | 0 | google-site-verification=wg4m8dWi3XVPRYmtBoy6xSKp3juhxIWa6UdxjZkNQCg | |
| isc.org | TXT | 0 | v=spf1 a mx ip4:149.20.0.0/20 ip6:2001:04F8::0/32 ip6:2001:500:60::65/128 ip4:199.6.1.0/24 ip6:2001:500:6b:2::0/64 include:shops.shopify.com include:servers.mcsv.net include:_spf.salesforce.com include:spf-a.customercenter.net include:spf-b.customercenter.net include:spf-c.customercenter.net ~all | |
| isc.org | NS | 0 | ns1.isc.org | |
| isc.org | NS | 0 | ns.isc.afilias-nst.info | |
| isc.org | NS | 0 | nsp.dnsnode.net | |
| isc.org | NS | 0 | ns2.isc.org | |
| isc.org | NS | 0 | ns3.isc.org | |
| www.isc.org | A | 0 | 151.101.195.42 | |
| www.isc.org | A | 0 | 151.101.3.42 | |
| www.isc.org | A | 0 | 151.101.131.42 | |
| www.isc.org | A | 0 | 151.101.67.42 | |
| www.isc.org | AAAA | 0 | 2a04:4e42:200::810 | |
| www.isc.org | AAAA | 0 | 2a04:4e42:400::810 | |
| www.isc.org | AAAA | 0 | 2a04:4e42::810 | |
| www.isc.org | AAAA | 0 | 2a04:4e42:600::810 |
Get alerted the moment isc.org's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch isc.org 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