Sempra sempra.com Partial data, full scan by Oct 26
Fortune 500 rank #330 · Utilities · Utilities: Gas and Electric · SRE
Last scanned 2026-10-19 · next scan Mon, Oct 26
Full DNS records & evidence → NS, MX, mail and SPF senders, verification vendors, certificate authorities, CNAME chains, ASNs and history per hostname
AI vendors verified: OpenAI
DNS
DNS, traffic-weighted: Sempra
DNS by hostname count: Sempra
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 |
|---|---|---|---|---|
| sempra.com primary | UltraDNS (DigiCert) | pdns1.ultradns.net pdns2.ultradns.net pdns3.ultradns.org pdns4.ultradns.org pdns5.ultradns.info pdns6.ultradns.co.uk | 2 | 0 |
CDN & Security
CDN & Security, traffic-weighted: Sempra
CDN & security by hostname count: Sempra
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: Fastly 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 = sempra.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 |
|---|---|---|---|---|---|---|
| sempra.com | primary primary site primary site · CDN & security Fastly · DNS UltraDNS (DigiCert) · 50.0% |
UltraDNS (DigiCert) | Fastly | Fastly (AS54113) (A 23.185.0.1 in 23.185.0.0/24 originated by AS54113; seen in the HTTP response) NGINX (weak) (seen in the HTTP response) | 23.185.0.1 AS54113 · 23.185.0.0/24 | 50.0% |
| www.sempra.com | primary primary site primary site · CDN & security Cloudflare · DNS UltraDNS (DigiCert) · 50.0% |
UltraDNS (DigiCert) | Cloudflare | Cloudflare (IP range) (A 104.20.25.155 in published cloudflare ranges; seen in the HTTP response) | 104.20.25.155 172.66.155.34 AS13335 · 104.20.16.0/20 | 50.0% |
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History
Trend charts start once two weeks of history build up.
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