Domain lookup
rcpt.us
Hosted by Amazon.com, Inc. (AS16509) in United States · Tranco rank #826,154
Hosting
143.204.194.106AS16509 Amazon.com, Inc. · 🇺🇸 United States · Clean
143.204.194.109AS16509 Amazon.com, Inc. · 🇺🇸 United States · Clean
143.204.194.119AS16509 Amazon.com, Inc. · 🇺🇸 United States · Clean
143.204.194.41AS16509 Amazon.com, Inc. · 🇺🇸 United States · Clean
2600:9000:203b:1000:e:b1bc:2fc0:93a1AS16509 Amazon.com, Inc. · 🇺🇸 United States · —
2600:9000:203b:1800:e:b1bc:2fc0:93a1AS16509 Amazon.com, Inc. · 🇺🇸 United States · —
2600:9000:203b:2200:e:b1bc:2fc0:93a1AS16509 Amazon.com, Inc. · 🇺🇸 United States · —
2600:9000:203b:8400:e:b1bc:2fc0:93a1AS16509 Amazon.com, Inc. · 🇺🇸 United States · —
2600:9000:203b:9e00:e:b1bc:2fc0:93a1AS16509 Amazon.com, Inc. · 🇺🇸 United States · —
2600:9000:203b:a800:e:b1bc:2fc0:93a1AS16509 Amazon.com, Inc. · 🇺🇸 United States · —
2600:9000:203b:ba00:e:b1bc:2fc0:93a1AS16509 Amazon.com, Inc. · 🇺🇸 United States · —
2600:9000:203b:c200:e:b1bc:2fc0:93a1AS16509 Amazon.com, Inc. · 🇺🇸 United States · —
Technologies
Web serverApache
CDN / protectionAmazon CloudFront
ProtocolTLS 1.3 · HTTP/2
Security headersHSTS CSP Frame protection nosniff Referrer-Policy
SourceHome page probe · 8 Oct 2026 · statistics · about this probe
DNS records
Name serversCloudflare
ali.ns.cloudflare.com
earl.ns.cloudflare.com
ali.ns.cloudflare.com
earl.ns.cloudflare.com
SPFnone published
DMARCnone published
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Known domains: the Tranco top 1M (most popular sites worldwide), the sites most visited in 238 countries (Chrome UX Report), every active .fr domain (AFNIC open data), every .nu, .ee, .se, .ch, .li, .sk domain (registry zone files), every domain of 1021 generic TLDs such as .org, .pro, .cloud (ICANN CZDS zone files) and domains seen in new certificates (Certificate Transparency logs, .com and .net included, collected since 30 September 2026), resolved regularly — updated continuously, last update 2026-10-09. Not exhaustive: other sites may share this address.
Live DNS lookup on 2026-10-09. JSON: /domain/rcpt.us?format=json