Check-Host.cc

Domain

flattr.com

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Run a live full scan of flattr.com

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

Deep-scan now
Hosting IPs
1
A/AAAA targets
Subdomains
16
CT + scan + body
Record Types
4
seen in DNS
Observed Certs
2
in our scans

DNS Records

A
199.36.158.100
AAAA
MX
1 smtp.google.com
NS
pdns73.ultradns.biz, pdns73.ultradns.co.uk, pdns73.ultradns.com, pdns73.ultradns.info, pdns73.ultradns.net, pdns73.ultradns.org
TXT
Fib_Zem13LSmbuha7HbXNauIk85c-C-5FnsEw9B4p_k, firebase=flattr-neu, google-site-verification=yk5DAxMdbgnWmaSgQrItlOUFvuS5xijl2CI9x-ffOEU, v=spf1 include:_spf.google.com ~all, yGHlaO3W6V2KBly4rlrdKzrqvlOx7hkluwSHrgHmjxo
CNAME
CAA

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Every subdomain we know about — harvested from CT-log SANs, scan-observed certs and HTML body references — paired with its current A/AAAA target.

Subdomain Resolves to Last seen
api.flattr.com
1970-01-01 00:00:00.000
flattr.com 2026-07-21 16:41:31.643
www.flattr.com 2026-06-18 09:14:55.986

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

Hosts whose HTML body references this domain. Strong signal for origin/mirror/embed discovery.

50.59.99.202:80 href · ×8
176.58.110.134:443 href · ×2
87.106.235.74:443 href · ×2
66.113.192.197:443 href · ×1
78.94.73.74:443 href · ×1
3.214.244.163:80 href · ×1
162.243.62.89:443 href · ×1

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

No origin-IP leaks detected (yet)

Either this domain doesn't sit behind a CDN, or we haven't seen a TLS cert from a non-CDN IP matching this hostname. Run a fullscan to refresh the cert→IP cross-reference.

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Passive DNS — every value this name ever resolved to and when we first / last observed it. Updates every cycle of our forward-DNS crawler.

Type Value First seen Last seen
NS pdns73.ultradns.net 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
TXT v=spf1 include:_spf.google.com ~all 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
NS pdns73.ultradns.com 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
A 199.36.158.100 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
NS pdns73.ultradns.org 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
NS pdns73.ultradns.biz 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
TXT google-site-verification=yk5DAxMdbgnWmaSgQrItlOUFvuS5xijl2CI9x-ffOEU 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
TXT Fib_Zem13LSmbuha7HbXNauIk85c-C-5FnsEw9B4p_k 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
MX 1 smtp.google.com 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
TXT firebase=flattr-neu 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
NS pdns73.ultradns.co.uk 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
NS pdns73.ultradns.info 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643
TXT yGHlaO3W6V2KBly4rlrdKzrqvlOx7hkluwSHrgHmjxo 2026-05-26 05:00:16.508 2026-07-21 16:41:31.643