arcor.com

Observed Jul 24, 2026, 10:20 UTC (15h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Up right now

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesZoomDocuSignAtlassian

tranco

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

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

arcor.com

A / AAAA

52.1.53.61

unattributedserves the site

ns1.p201.dns.oraclecloud.netns3.p201.dns.oraclecloud.netns2.p201.dns.oraclecloud.netns4.p201.dns.oraclecloud.net

oraclecloud.netanswers its DNS

arcor-com.mail.protection.outlook.com

Microsoft 365receives its email

TLS

arcor.com

Let's Encryptissued its certificate

DNS Records

A 1

52.1.53.61

MX 1

0arcor-com.mail.protection.outlook.com

TXT 11

v=spf1 mx a ip4:150.136.20.66 ip4:141.148.22.238 ip4:129.213.208.14 include:spf.protection.outlook.com include:_spf.embluemail.com include:rp.oracleemaildelivery.com include:custhelp.com include:rnmk.com include:spf_c.oraclecloud.com include:sendgrid.net ~all
ZOOM_verify_4GCQozh9QOacOedaK9i0Mv
cisco-ci-domain-verification=4a3c6ed51d891c1f2dde311259401922eadfcdaa937c091c3e794e00a1a73493
Dynatrace-site-verification=90e76b2e-94d1-40c1-a139-f89c724a99ed__r4i3m6um1ghlhhjef7re7hct6j
dell-technologies-domain-verification=arcor.com_81654f6f-866a-4320-853a-d5fb87504b44_1719667280
uc8txmm.ng.impervadns.net
citrix.mobile.ads.otp=umfx3la3c0a6ro7udg8nx2
docusign=ce5c5e1a-76f4-4010-91da-95c11d309181
atlassian-domain-verification=f+M4teOHr14CwQKeloKrwniRFJj8zY2SevkVe04ZK1AWBUVAH5ykzdDS6lceHzBC
hpe-greenlake-domain-verification=7a2d4470776d78586d4c62634b394c6b714a75636a3658564973634534565843

NS 4

ns1.p201.dns.oraclecloud.net
ns3.p201.dns.oraclecloud.net
ns2.p201.dns.oraclecloud.net
ns4.p201.dns.oraclecloud.net

SOA 1

ns1.p201.dns.oraclecloud.net hostmaster.arcor.com

SRV 4

expwy2.arcor.com:5060 p20
expwy1.arcor.com:5060 p10
expwy2.arcor.com:5061 p20
expwy1.arcor.com:5061 p10

TLS Certificates (3)

Common Name	Issuer	Expires
`arcor.com`	C=US, O=Let's Encrypt, CN=YR2	Wed, 30 Sep 2026 21:20:35 +0000
`YR2`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +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 receipt

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

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

Ed25519 Receipt

Receipt ID: rcpt_c32f3e6f2fd39528
Output Hash: 0402a747d4f6be5c78a618fba450657cbb9eebb9867cb765e2e3eb3054a60482
Signature: ed25519:658a23bcd2c3997756a62c263f783d523f6070dca85dd20359845d29f5119c481fa454898c5aa0ca586b471ab9a4c6bf51c3e64e5bf428598d796eb580d56104
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/arcor.com