coreserver.jp
Observed 2026-07-17T15:35:20.078962872+00:00 (5h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle (SPF sender)
Secured byGlobalSign
Also usesGoogle Search Console
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat coreserver.jp actually stands on - every host below is a signed observation
coreserver.jp
A / AAAA
104.18.24.150104.18.25.150
Cloudflareserves the site
NS
gabriel.ns.cloudflare.comvera.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mail.coreserver.jp
Google (SPF sender)receives its email
TLS
*.coreserver.jp
GlobalSign nv-saissued its certificate
DNS Records
A 2
104.18.24.150104.18.25.150
MX 1
10mail.coreserver.jp
TXT 5
_globalsign-domain-verification=rgM5jLvewIPQ1kUWl4oyGT2IX6lJq_GqQv8kTD5OAYgoogle-site-verification=M52iG-enU0nhGjZ1Rv0-Jd8Gpn3NEjwa4cWvyYct9tUv=spf1 a:www.coreserver.jp ip4:202.172.25.31 include:_spf.google.com ~allv=spf1 redirect=value-domain.comv=DMARC1; p=none; rua=mailto:f568cdd1f04f43ff92f13fb384cf4e68@dmarc-reports.cloudflare.net
NS 2
gabriel.ns.cloudflare.comvera.ns.cloudflare.com
SOA 1
gabriel.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
*.coreserver.jp |
C=BE, O=GlobalSign nv-sa, CN=GlobalSign GCC R3 DV TLS CA 2020 | Sun, 27 Dec 2026 01:51:35 +0000 |
GlobalSign GCC R3 DV TLS CA 2020 |
2.5.4.11=GlobalSign Root CA - R3, O=GlobalSign, CN=GlobalSign | Sun, 18 Mar 2029 00:00:00 +0000 |
GlobalSign |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 12:00:00 +0000 |
Subdomains (0)
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
27905b5e-b35f-4256-9439-96f1ed38b8f6- Output Hash
81ccabd545b9dab3c949ecc98f6835794df3b5f408f01a853f11758a85a74608- Signature
ed25519:66955bb540e20fdb5bbee2a969b02b0722ed0ee2b689d978527d544dec5d0c236f48fa962054170db49b1a8608a09462bd3adc4584cf82dd32af25692c1dcc02- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast