DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

syllabus.io runs on Cloudflare (multi-homed across 2 networks), with DNS by Cloudflare and email via Google Workspace.

Hosting network
Cloudflaremulti-homedAS13335CloudflareAS209242Cloudflare
Managed DNS
Cloudflare
Email
Google Workspace
IPv6 (AAAA)
Enabled
CAA pinning
Set

Sits alongside 5,133,736 other sites on Cloudflare. 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 cdn.webflow.com.

DNS Records for syllabus.io

HostnameTypeTTLPriorityContent
syllabus.ioNS0aron.ns.cloudflare.com
syllabus.ioNS0giancarlo.ns.cloudflare.com
syllabus.ioA0198.202.211.1
syllabus.ioCAA00 issue comodoca.com
syllabus.ioCAA00 issue digicert.com; cansignhttpexchanges=yes
syllabus.ioCAA00 issue letsencrypt.org
syllabus.ioCAA00 issuewild letsencrypt.org
syllabus.ioCAA00 issuewild pki.goog; cansignhttpexchanges=yes
syllabus.ioCAA00 issue ssl.com
syllabus.ioCAA00 issuewild comodoca.com
syllabus.ioCAA00 issuewild ssl.com
syllabus.ioCAA00 issue pki.goog; cansignhttpexchanges=yes
syllabus.ioCAA00 issuewild digicert.com; cansignhttpexchanges=yes
syllabus.ioAAAA02620:cb:2000::1
syllabus.ioTXT0proxy-ssl.webflow.com
syllabus.ioTXT0v=spf1 include:_spf.google.com include:7076836.spf01.hubspotemail.net include:44160400.spf08.hubspotemail.net ~all
syllabus.ioTXT0google-site-verification=Np2ZmjN2-zjmoWSFuRek68YLsJ_kltF-LeqSc2MxfgI
syllabus.ioTXT0rippling-domain-verification=9ca560dc7364c4fb
syllabus.ioTXT0atlassian-sending-domain-verification=2d1c5a1d-9f27-4d38-90ce-c32b2be08d60
syllabus.ioSOA1800aron.ns.cloudflare.com dns.cloudflare.com 2416830833 10000 2400 604800 1800
syllabus.ioMX01aspmx.l.google.com
syllabus.ioMX010alt3.aspmx.l.google.com
syllabus.ioMX05alt2.aspmx.l.google.com
syllabus.ioMX05alt1.aspmx.l.google.com
syllabus.ioMX010alt4.aspmx.l.google.com
www.syllabus.ioSOA1800journey.ns.cloudflare.com dns.cloudflare.com 2417274809 10000 2400 604800 1800
www.syllabus.ioCNAME0cdn.webflow.com
www.syllabus.ioA0198.202.211.1
www.syllabus.ioAAAA02620:cb:2000::1
www.syllabus.ioNS0lamar.ns.cloudflare.com
www.syllabus.ioNS0journey.ns.cloudflare.com

Get alerted the moment syllabus.io's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch syllabus.io 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.

Monitor DNS free

Free for your first domain: uptime, DNS, and certificate together. No credit card.

What's up with DNS →

Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.

Ask about syllabus.io

Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

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