Sirius XM Holdings siriusxm.com Partial data, full scan by Oct 29
Fortune 500 rank #463 · Communication · Entertainment · SIRI
Last scanned 2026-10-19 · next scan Thu, Oct 29
Full DNS records & evidence → NS, MX, mail and SPF senders, verification vendors, certificate authorities, CNAME chains, ASNs and history per hostname
AI vendors verified: Anthropic · OpenAI
DNS
DNS, traffic-weighted: Sirius XM Holdings
DNS by hostname count: Sirius XM Holdings
Zones (1)
Each DNS zone that holds a scanned hostname: the domain apex, brand domains and any delegated subdomain. Two vendors on one zone = secondary DNS.
| Zone | DNS provider | Nameservers | Hostnames | Key |
|---|---|---|---|---|
| siriusxm.com primary | NS1 (IBM) + Other secondary | dns1.p06.nsone.net dns2.p06.nsone.net dns3.p06.nsone.net dns4.p06.nsone.net ns01.sxmentsvcs.com Inc +10 | 2 | 0 |
CDN & Security
CDN & Security, traffic-weighted: Sirius XM Holdings
CDN & security by hostname count: Sirius XM Holdings
Hostname map
The live hostnames from the table below, grouped by the provider in front of it and the network (ASN and BGP prefix) its address belongs to. Colored borders mark roles: primary site login / account store developer / API marketing / support / downloads.
Key hostnames by role (CDN & security)
- primary site: Akamai Unknown
- login / SSO: none found
- account: none found
- store / checkout: none found
- marketing / brand: none found
- support / help: none found
- developer / API: none found
- downloads / static: none found
Hostnames (2)
Found through brand research, browser traffic data (Chrome UX Report) and certificate logs. Tiers: primary = siriusxm.com and www; key = customer-facing or revenue names (login, account, store, marketing/brand, support, developer, downloads) on any owned domain; other = remaining public names (low weight); internal = staff-only names, not listed here and not counted in share. "CDN & Security" is the CDN, WAF or cloud load balancer a visitor connects to first. Grey rows did not resolve. Weight = share of the company's traffic-weighted total.
| Hostname | Tier / role | DNS | CDN & security | CDN & security evidence | CNAME / IP · ASN | Weight |
|---|---|---|---|---|---|---|
| www.siriusxm.com CrUX top 50,000 | primary primary site primary site · CDN & security Akamai · DNS NS1 (IBM) + DNS Other · 80.0% |
NS1 (IBM) Other | Akamai | Akamai (edgekey) (CNAME www.siriusxm.com.edgekey.net; A 23.195.81.139 in 23.195.81.0/24 originated by AS20940; seen in the HTTP response) NGINX (weak) (seen in the HTTP response) | www.siriusxm.com.edgekey.net > e216167.dsca.akamaiedge.net AS20940 · 23.195.81.0/24 | 80.0% |
| siriusxm.com | primary primary site primary site · CDN & security Unknown · DNS NS1 (IBM) + DNS Other · 20.0% |
NS1 (IBM) Other | Unknown | Unknown (AS27011) (no CDN/WAF/cloud signal (AS27011)) F5 BIG-IP (seen in the HTTP response) | 209.196.203.234 AS27011 · 209.196.203.0/24 | 20.0% |
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History
Trend charts start once two weeks of history build up.
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