perimeter81.com

Observed 2026-07-17T21:43:32.197Z (5h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Also usesGoogle Search ConsoleAtlassianDocuSign

IPv6 · 92 subdomains · cybersecurity_expanded

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat perimeter81.com actually stands on - every host below is a signed observation

perimeter81.com

A / AAAA

18.239.199.12718.239.199.4718.239.199.4518.239.199.27+2 more

Cloudflareserves the site

ns-1912.awsdns-47.co.ukns-600.awsdns-11.netns-1390.awsdns-45.orgns-507.awsdns-63.com

awsdns-47.co.uk + awsdns-11.net + moreanswers its DNS

perimeter81-com.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://sase.checkpoint.com:443/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time209 ms

DNS resolutionNOERROR

Redirect chain

https://sase.checkpoint.com:443/

MCP This domain advertises an AI service endpoint at _mcp._tcp.

docusign=330ee659-96e7-41a5-8a42-75b070463316

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 4

18.239.199.127
18.239.199.47
18.239.199.45
18.239.199.27

AAAA 2

2606:4700:10::6816:30f7
2606:4700:10::6816:31f7

MX 1

0perimeter81-com.mail.protection.outlook.com

TXT 16

zoho-verification=zb51719799.zmverify.zoho.com
google-site-verification=ey1dCvmZd3ejYSzk6e3GJtbK1lHGeWXYnoTjj0LE1Jk
atlassian-domain-verification=OAFLhunIHAsvjL1SCeeNaYiPslEf7JXjseLgxMXSyiKvzuqI/y3v/mfQHaFoC9uY
mongodb-site-verification=UtI5UoqRU3T6pFXHkchZ9nrthJaoU6jO
MS=ms90038918
zapier-domain-verification-challenge=6c246f52-2b50-4450-8364-9441584277f9
_globalsign-domain-verification=6qeMEr0ogjkSG8XSOUqtVQFNH1tsMoCvxSRa7DE-Na
status-page-domain-verification=xt3yxw341zvh
apple-domain-verification=5Q9pczikuJcABPFn
v=spf1 ip4:185.28.196.187 include:sendgrid.net include:stspg-customer.com include:fdspfus.freshemail.io ip4:159.183.209.233 include:spf.protection.outlook.com -all

NS 4

ns-1912.awsdns-47.co.uk
ns-600.awsdns-11.net
ns-1390.awsdns-45.org
ns-507.awsdns-63.com

SOA 1

ns-600.awsdns-11.net awsdns-hostmaster.amazon.com

CAA 12

issue digicert.com; cansignhttpexchanges=yes
issue sectigo.com
issue letsencrypt.org
issuewild amazon.com
issuewild pki.goog
issuewild globalsign.com
issuewild digicert.com; cansignhttpexchanges=yes
issuewild sectigo.com
issue pki.goog
issue amazon.com

TLS Certificates (0)

None.

Subdomains (92)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for perimeter81.com. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/perimeter81.com">
  <img src="https://domaindrift.io/badge/perimeter81.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for perimeter81.com">
</a>

Ed25519 Receipt

Receipt ID: 4ede64be-f99f-4f23-b0ef-9eb8856cfacf
Output Hash: bbdba339bfb12dd05aef5b806e95dc14a0814ffa9e4fac52fb29ef4200be4b9b
Signature: ed25519:ab2997cf2a83b43aa01bb57ca51e5b9817921da4cbd6b784e3b81b800ae1cc57ef13a3e57cf6d88a4dd701d3d17dc804e02311ed2e663e1dfc68c7677ebd9e09
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

Verify this in your browser

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