Check-Host.cc

Try 1.1.1.1 AS13335 check-host.cc /country/de /tld/cc
Domain

learn.sparkfun.com

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

DNS Check HTTP Check Run Full Scan .com TLD

Run a live full scan of learn.sparkfun.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
43
A/AAAA targets
Subdomains
—
CT + scan + body
Record Types
3
seen in DNS
Observed Certs
3
in our scans

DNS Records

A
108.156.60.46, 108.156.60.61, 108.156.60.82, 108.156.60.83, 13.35.58.15, 13.35.58.18, 13.35.58.55, 13.35.58.91
AAAA
2600:9000:2359:1200:1f:b942:9640:93a1, 2600:9000:2359:1600:1f:b942:9640:93a1, 2600:9000:2359:2800:1f:b942:9640:93a1, 2600:9000:2359:3000:1f:b942:9640:93a1, 2600:9000:2359:3e00:1f:b942:9640:93a1, 2600:9000:2359:4000:1f:b942:9640:93a1, 2600:9000:2359:4800:1f:b942:9640:93a1, 2600:9000:2359:5800:1f:b942:9640:93a1
MX
—
NS
—
TXT
v=spf1 include:_spf.google.com ip4:204.144.132.32/27 ip4:207.126.144.0/20 ip4:64.18.0.0/20 ip4:74.125.83.49 ip4:74.125.148.0/22 ip4:74.125.83.49 ip4:216.241.47.34 a mx -all
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

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

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

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

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.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

f9523d7ae4a8221c… google · xenon2026h2
Subject: www.sparkfun.com
Issuer: Amazon RSA 2048 M04
SANs: www.sparkfun.com, learn.sparkfun.com, avc.sparkfun.com, static.sparkfun.com, data.sparkfun.com, sparkfun.com, spectacle.sparkfun.com, sfe.io
Valid: 2026-03-24 00:00:00 → 2026-10-07 23:59:59

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
TXT v=spf1 include:_spf.google.com ip4:204.144.132.32/27 ip4:207.126.144.0/20 ip4:64.18.0.0/20 ip4:74.125.83.49 ip4:74.125.148.0/22 ip4:74.125.83.49 ip4:216.241.47.34 a mx -all 2026-05-26 12:27:20.868 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:5e00:1f:b942:9640:93a1 2026-05-26 12:27:20.868 2026-05-26 12:27:20.868
AAAA 2600:9000:2359:6e00:1f:b942:9640:93a1 2026-05-26 12:27:20.868 2026-05-26 12:27:20.868
AAAA 2600:9000:2359:de00:1f:b942:9640:93a1 2026-05-26 12:27:20.868 2026-05-27 04:43:51.193
AAAA 2600:9000:2359:3000:1f:b942:9640:93a1 2026-05-26 12:27:20.868 2026-05-26 12:27:20.868
AAAA 2600:9000:2359:7600:1f:b942:9640:93a1 2026-05-26 12:27:20.868 2026-05-26 12:27:20.868
A 13.35.58.18 2026-05-26 12:27:20.868 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:c600:1f:b942:9640:93a1 2026-05-26 12:27:20.868 2026-05-26 12:27:20.868
A 13.35.58.55 2026-05-26 12:27:20.868 2026-07-27 16:59:37.101
A 13.35.58.91 2026-05-26 12:27:20.868 2026-07-27 16:59:37.101
A 13.35.58.15 2026-05-26 12:27:20.868 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:6400:1f:b942:9640:93a1 2026-05-26 12:27:20.868 2026-05-26 12:27:20.868
AAAA 2600:9000:2359:c400:1f:b942:9640:93a1 2026-05-26 12:27:20.868 2026-05-26 12:27:20.868
AAAA 2600:9000:2359:3e00:1f:b942:9640:93a1 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
AAAA 2600:9000:2359:b000:1f:b942:9640:93a1 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
AAAA 2600:9000:2359:ee00:1f:b942:9640:93a1 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
A 18.66.248.99 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
A 18.66.248.60 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
AAAA 2600:9000:2359:4800:1f:b942:9640:93a1 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
A 18.66.248.93 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
AAAA 2600:9000:2359:8400:1f:b942:9640:93a1 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
AAAA 2600:9000:2359:bc00:1f:b942:9640:93a1 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
A 18.66.248.80 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
AAAA 2600:9000:2359:1600:1f:b942:9640:93a1 2026-05-27 04:43:51.193 2026-05-27 04:43:51.193
AAAA 2600:9000:2394:8400:1f:b942:9640:93a1 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
A 108.156.60.61 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
AAAA 2600:9000:2394:1c00:1f:b942:9640:93a1 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
AAAA 2600:9000:2394:9400:1f:b942:9640:93a1 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
AAAA 2600:9000:2394:7000:1f:b942:9640:93a1 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
A 108.156.60.46 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
A 108.156.60.82 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
AAAA 2600:9000:2394:1e00:1f:b942:9640:93a1 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
A 108.156.60.83 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
AAAA 2600:9000:2394:d400:1f:b942:9640:93a1 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
AAAA 2600:9000:2394:d800:1f:b942:9640:93a1 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
AAAA 2600:9000:2394:a200:1f:b942:9640:93a1 2026-06-14 22:08:58.337 2026-06-14 22:08:58.337
AAAA 2600:9000:2359:7c00:1f:b942:9640:93a1 2026-07-27 16:59:37.101 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:4000:1f:b942:9640:93a1 2026-07-27 16:59:37.101 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:a00:1f:b942:9640:93a1 2026-07-27 16:59:37.101 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:b800:1f:b942:9640:93a1 2026-07-27 16:59:37.101 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:5800:1f:b942:9640:93a1 2026-07-27 16:59:37.101 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:9600:1f:b942:9640:93a1 2026-07-27 16:59:37.101 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:1200:1f:b942:9640:93a1 2026-07-27 16:59:37.101 2026-07-27 16:59:37.101
AAAA 2600:9000:2359:2800:1f:b942:9640:93a1 2026-07-27 16:59:37.101 2026-07-27 16:59:37.101