Peter Kiewit Sons' kiewit.com Partial data, full scan by Nov 1
Fortune 500 rank #242 · Industrials · Engineering & Construction
Last scanned 2026-10-19 · next scan Sun, Nov 1
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 · Cursor
DNS
DNS, traffic-weighted: Peter Kiewit Sons'
DNS by hostname count: Peter Kiewit Sons'
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 |
|---|---|---|---|---|
| kiewit.com primary | Cloudflare DNS | dawn.ns.cloudflare.com lou.ns.cloudflare.com | 2 | 0 |
CDN & Security
CDN & Security, traffic-weighted: Peter Kiewit Sons'
CDN & security by hostname count: Peter Kiewit Sons'
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: 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 = kiewit.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.kiewit.com CrUX top 1,000,000 | primary primary site primary site · CDN & security Cloudflare · DNS Cloudflare DNS · 60.0% |
Cloudflare DNS | Cloudflare | Cloudflare (IP range) (A 104.18.31.173 in published cloudflare ranges; seen in the HTTP response) Cloudflare Bot Management (seen in the HTTP response) | 104.18.31.173 104.18.30.173 AS13335 · 104.18.16.0/20 | 60.0% |
| kiewit.com | primary primary site primary site · CDN & security Cloudflare · DNS Cloudflare DNS · 40.0% |
Cloudflare DNS | Cloudflare | Cloudflare (IP range) (A 104.18.30.173 in published cloudflare ranges; seen in the HTTP response) Cloudflare Bot Management (seen in the HTTP response) | 104.18.30.173 104.18.31.173 AS13335 · 104.18.16.0/20 | 40.0% |
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History
Trend charts start once two weeks of history build up.
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