Check-Host.cc

Domain

code.org

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

Run a live full scan of code.org

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
45
A/AAAA targets
Subdomains
51
CT + scan + body
Record Types
4
seen in DNS
Observed Certs
2
in our scans

DNS Records

A
18.239.105.111, 18.239.105.21, 18.239.105.40, 18.239.105.47, 52.222.236.111, 52.222.236.124, 52.222.236.22, 52.222.236.81
AAAA
MX
1 aspmx.l.google.com, 10 aspmx2.googlemail.com, 10 aspmx3.googlemail.com, 5 alt1.aspmx.l.google.com, 5 alt2.aspmx.l.google.com
NS
ns-1497.awsdns-59.org, ns-1652.awsdns-14.co.uk, ns-269.awsdns-33.com, ns-678.awsdns-20.net
TXT
1password-site-verification=TPIIQMLIDNFZVKFU4KF3R72LRM, MS=ms84680364, atlassian-domain-verification=OTixRADMse89Mpeybwy2m81PhC7hgIimN7beU8xwqsKK6TjWxiWV9uoRr8fhh/SH, bugcrowd-verification=4e328e2cf7e9d86a17f10faeceeedd3e, d1l2ndf1rv58my.cloudfront.net, facebook-domain-verification=wvqcv3rz5jjrhuaoeyedkmqtyugi7b, google-site-verification=-E_rSfU2SJ037l6KuAS1LMH7BQ7Lw-Feb1I7JZvVpqI, google-site-verification=LPH506ckn9ILnoLbU7-_iLGwb7KnC-whH6LDFsYpvso
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
aiproxy-test.code.org 2026-06-15 00:07:36.295
code.org 2026-07-28 17:13:52.071
studio.code.org 2026-07-26 00:14:35.926
aiproxy-dev-claude-response-and-error-handling.code.org 2026-06-19 07:25:13.923
blog.code.org 2026-06-04 11:05:10.988
donate.code.org 2026-07-27 10:11:26.897
teacherblog.code.org 2026-06-04 11:05:10.988
global-partners.code.org 2026-06-20 22:43:24.133
javabuilder-test-http.code.org 2026-06-23 14:07:37.532
adhoc.k8s.code.org
1970-01-01 00:00:00.000
aiday.marketing-sites.code.org
1970-01-01 00:00:00.000
code-loadbalancer.marketing-sites.code.org
1970-01-01 00:00:00.000
dance-api.code.org
1970-01-01 00:00:00.000
districts.code.org
1970-01-01 00:00:00.000
javabuilder-demo.code.org
1970-01-01 00:00:00.000
javabuilder-ruby-3-3-upgrade-test-content.code.org
1970-01-01 00:00:00.000
javabuilder-ruby-3-3-upgrade-test-http.code.org
1970-01-01 00:00:00.000
javabuilder-ruby-3-3-upgrade-test.code.org
1970-01-01 00:00:00.000
javabuilder-ruby-3-3-upgrade.code.org
1970-01-01 00:00:00.000
javabuilderbeta-http.code.org
1970-01-01 00:00:00.000
k8s.code.org
1970-01-01 00:00:00.000
levelbuilder.k8s.code.org
1970-01-01 00:00:00.000
plresources.code.org
1970-01-01 00:00:00.000
preview-aiday.marketing-sites.code.org
1970-01-01 00:00:00.000
production.k8s.code.org
1970-01-01 00:00:00.000
staging.k8s.code.org
1970-01-01 00:00:00.000
test.k8s.code.org
1970-01-01 00:00:00.000
www.levelbuilder.code.org
1970-01-01 00:00:00.000

Tech Stack

Tech detection pending

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

TLS Certificates

Subject: pr-01.viacode.org
Issuer: ZeroSSL ECC DV SSL CA 2
SANs: pr-01.viacode.org
Subject: monitoring.sealcode.org
Issuer: YR1
SANs: monitoring.sealcode.org
Subject: www.evacode.org
Issuer: GlobalSign GCC R3 DV TLS CA 2020
SANs: autodiscover.evacode.org, evacode.org, mail.evacode.org, owa.evacode.org, www.evacode.org
Subject: *.usis-code.org
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.usis-code.org, usis-code.org
Subject: *.apicode.org
Issuer: E8
SANs: *.apicode.org
Subject: oky.sacode.org
Issuer: YR2
SANs: oky.sacode.org
Subject: kvm-code.org
Issuer: Amazon RSA 2048 M01
SANs: kvm-code.org
Subject: bic-code.org
Issuer: YR2
SANs: bic-code.org, www.bic-code.org
Subject: *.dogwalkingcode.org.uk
Issuer: ZeroSSL RSA DV SSL CA 2
SANs: *.dogwalkingcode.org.uk, dogwalkingcode.org.uk
Subject: code.orglx.com
Issuer: TrustAsia RSA DV TLS CA G2
SANs: code.orglx.com
Subject: *.meincode.org
Issuer: SSL2BUY EMEA RSA Domain Validation Secure Server CA
SANs: *.meincode.org, meincode.org
Subject: cloud.code.organic
Issuer: YR1
SANs: cloud.code.organic, code.organic, www.code.organic
Subject: *.iseeuglycode.org
Issuer: YR2
SANs: *.iseeuglycode.org, iseeuglycode.org
Subject: holycode.org
Issuer: E7
SANs: holycode.org, www.holycode.org
Subject: *.icode.org.cn
Issuer: RapidSSL TLS RSA CA G1
SANs: *.icode.org.cn, icode.org.cn
Subject: layer1-ovirt-code.org
Issuer: CloudFlare Inc ECC CA-3
SANs: layer1-ovirt-code.org
Subject: *.nicode.org
Issuer: Certum Domain Validation CA SHA2
SANs: *.nicode.org, nicode.org
Subject: git.wcode.org.isrv
Issuer: Watershed CA Servers Intermediate (2025-2029)
SANs: 10.20.48.2, 185.80.133.153, git.wcode.org, git.wcode.org.isrv
Subject: *.icode.org.cn
Issuer: RapidSSL TLS RSA CA G1
SANs: *.icode.org.cn, icode.org.cn
Subject: byteofcode.org
Issuer: E6
SANs: byteofcode.org
Subject: x01.j-code.org
Issuer: YR1
SANs: x01.j-code.org
Subject: bardcode.org
Issuer: E8
SANs: bardcode.org, www.bardcode.org
Subject: *.apicode.org
Issuer: E8
SANs: *.apicode.org
Subject: goosecode.org
Issuer: YR1
SANs: api.goosecode.org, app.goosecode.org, goosecode.org
Subject: www.lacompagnieducode.org
Issuer: YR2
SANs: www.lacompagnieducode.org
Subject: lucascode.org
Issuer: R13
SANs: lucascode.org
Subject: *.icode.org.cn
Issuer: RapidSSL TLS RSA CA G1
SANs: *.icode.org.cn, icode.org.cn
Subject: pr.viacode.org
Issuer: E8
SANs: pr.viacode.org
Subject: *.freshcode.org
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.freshcode.org, freshcode.org
Subject: forum.sealcode.org
Issuer: R13
SANs: forum.sealcode.org

IPs Citing This Domain

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

163.30.210.112:443 href · ×3
120.112.17.17:80 href · ×2
160.153.78.130:443 href · ×2
163.30.210.200:80 href · ×2
104.131.142.39:443 href · ×1
163.30.180.236:443 href · ×1
163.30.120.108:80 href · ×1
163.30.129.110:80 href · ×1
104.131.163.182:80 href · ×1
163.30.124.237:443 href · ×1
47.94.192.247:8080 href · ×1
101.43.60.138:8000 href · ×1
195.199.167.25:80 href · ×1
163.30.166.116:443 href · ×1
170.10.163.160:443 href · ×1
163.21.204.185:80 href · ×1
163.30.206.216:443 href · ×1
163.30.100.108:443 href · ×1
163.30.90.11:80 href · ×1
198.82.251.31:443 href · ×1
85.214.77.53:81 href · ×1
54.249.170.209:80 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 ns-1497.awsdns-59.org 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT v=spf1 include:amazonses.com include:_spf.google.com include:mail.zendesk.com include:aspmx.pardot.com include:44976903.spf05.hubspotemail.net include:spf.mailjet.com ~all 2026-05-26 09:29:06.776 2026-06-26 00:21:10.115
A 52.222.236.81 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
A 52.222.236.111 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT sending_domain1121843=909326644e56ca9f0d77cbc24cd152887da893af83565426791cae05db1e0628 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
NS ns-269.awsdns-33.com 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT t9dtxv28tq4n7tbn7355t26r62jtyh19 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT MS=ms84680364 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
A 52.222.236.22 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
NS ns-678.awsdns-20.net 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT google-site-verification=rlD0fAw4zex4U4XrrJn3Zf--QddLebZcb5seIznZ1_4 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
MX 10 aspmx3.googlemail.com 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
NS ns-1652.awsdns-14.co.uk 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT google-site-verification=-E_rSfU2SJ037l6KuAS1LMH7BQ7Lw-Feb1I7JZvVpqI 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT atlassian-domain-verification=OTixRADMse89Mpeybwy2m81PhC7hgIimN7beU8xwqsKK6TjWxiWV9uoRr8fhh/SH 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT google-site-verification=MEP5IUpWIF4sLlOnOyFoy8IB9KA-aZmKBukf30eO4-Y 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT google-site-verification=nD5EO832vd1LtEqVpphjLkH_nV4gxUKQb7MRotRUUkY 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT 1password-site-verification=TPIIQMLIDNFZVKFU4KF3R72LRM 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT google-site-verification=LPH506ckn9ILnoLbU7-_iLGwb7KnC-whH6LDFsYpvso 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT facebook-domain-verification=wvqcv3rz5jjrhuaoeyedkmqtyugi7b 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT pardot1121843=294f355dc244184aa79a9d92d7e82dbe6b4e3486bb2b74be1cabe0af2b14981d 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
A 52.222.236.124 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
MX 10 aspmx2.googlemail.com 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
MX 5 alt2.aspmx.l.google.com 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
MX 1 aspmx.l.google.com 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
MX 5 alt1.aspmx.l.google.com 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT bugcrowd-verification=4e328e2cf7e9d86a17f10faeceeedd3e 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
TXT d1l2ndf1rv58my.cloudfront.net 2026-05-26 09:29:06.776 2026-07-28 17:13:52.071
A 18.239.105.47 2026-06-02 03:45:33.953 2026-07-26 06:23:52.981
A 18.239.105.21 2026-06-02 03:45:33.953 2026-07-26 06:23:52.981
A 18.239.105.40 2026-06-02 03:45:33.953 2026-07-26 06:23:52.981
A 18.239.105.111 2026-06-02 03:45:33.953 2026-07-26 06:23:52.981
TXT v=spf1 include:amazonses.com include:_spf.google.com include:mail.zendesk.com include:aspmx.pardot.com include:44976903.spf05.hubspotemail.net include:spf.mailjet.com include:_spf.mlsend.com ~all 2026-07-15 20:04:13.980 2026-07-28 17:13:52.071
TXT mailerlite-domain-verification=991bf00c613365b7a2072767bbf139c471120142 2026-07-15 20:04:13.980 2026-07-28 17:13:52.071