Regeneron Pharmaceuticals regeneron.com Partial data, full scan by Oct 28
Fortune 500 rank #314 · Health Care · Pharmaceuticals · REGN
Last scanned 2026-10-19 · next scan Wed, Oct 28
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
DNS
DNS, traffic-weighted: Regeneron Pharmaceuticals
DNS by hostname count: Regeneron Pharmaceuticals
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 |
|---|---|---|---|---|
| regeneron.com primary | MarkMonitor | ns1.markmonitor.com ns2.markmonitor.com ns3.markmonitor.com ns4.markmonitor.com ns5.markmonitor.com ns6.markmonitor.com +1 | 2 | 0 |
CDN & Security
CDN & Security, traffic-weighted: Regeneron Pharmaceuticals
CDN & security by hostname count: Regeneron Pharmaceuticals
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: Unknown Cloudflare
- 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 = regeneron.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 |
|---|---|---|---|---|---|---|
| regeneron.com | primary primary site primary site · CDN & security Unknown · DNS MarkMonitor · 50.0% |
MarkMonitor | Unknown | Unknown (AS14135) (no CDN/WAF/cloud signal (AS14135)) | 209.235.68.11 AS14135 · 209.235.64.0/19 | 50.0% |
| www.regeneron.com | primary primary site primary site · CDN & security Cloudflare · DNS MarkMonitor · 50.0% |
MarkMonitor | Cloudflare | Cloudflare CDN (CNAME www.regeneron.com.cdn.cloudflare.net; A 104.18.8.82 in published cloudflare ranges; A 104.18.8.82 in 104.18.0.0/20 originated by AS13335; seen in the HTTP response) | www.regeneron.com.cdn.cloudflare.net AS13335 · 104.18.0.0/20 | 50.0% |
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History
Trend charts start once two weeks of history build up.
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