tandem.net

Observed Jul 18, 2026, 13:19 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Email byGoogle Workspace

Secured byAmazon

Registered withunited-domains GmbH

Also usesAtlassianGoogle Search Console

2 subdomains · tranco_40k

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

INFRASTRUCTURE MAPwhat tandem.net actually stands on - every host below is a signed observation

tandem.net

A / AAAA

18.157.64.4852.28.235.15

unattributedserves the site

ns-1064.awsdns-05.orgns-1602.awsdns-08.co.ukns-491.awsdns-61.comns-634.awsdns-15.net

awsdns-05.org + awsdns-08.co.uk + moreanswers its DNS

aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

*.production.tandem.net

Amazonissued its certificate

DNS Records

A 2

18.157.64.48
52.28.235.15

MX 5

1aspmx.l.google.com
10alt3.aspmx.l.google.com
10alt4.aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com

TXT 10

atlassian-domain-verification=r02iIiqML2afyG4ZDCEGIwCwq1JaZsaPjO0G8HNAlVUSd+okPJkp2t1XkkeZY9Wq
atlassian-domain-verification=zDXRFiDOlARS23hPh9zBYHqBEvBTNbXPPOJ6HvI21Mp375ppeFF8wlTSArqySxjy
detectify-verification=3bb3733fa578a9360bcfe19b7e9fee7b
firebase=tandem-2016
google-site-verification=DA3pIWDemLaMrUnbPZHYkSAZZNSSDFyo1WJLJzMWWww
google-site-verification=ZZLnK0gMhhDqDbOdjFnmWXBZE5tjKCEOHPjkrPJDHHU
google-site-verification=ZlWF1hbV29H-p91yE0kEVd802fGt7yurOGlty60GzoU
google-site-verification=sAviufA5PFc4-6X5BeESEly3NdM1SX6VrAehVQCY70Y
v=spf1 ip4:172.217.219.26 ip6:2607:f8b0:4001:c13::1a ip4:173.194.70.27 ip6:2607:f8b0:4003:c0f::1b ip4:142.250.96.27 ip6:2607:f8b0:4023:403::1b ip4:173.194.209.27 ip6:2607:f8b0:4024:c02::1b ip4:74.125.197.26 ip6:2607:f8b0:400e:c09::1b ip4:13.35.121.74 ip4:13.35.121.104 ip4:13.35.121.67 ip4:13.35.121.48 exists:%{i}._spf.sparkpostmail.com ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 ip4:54.240.64.0/19 ip4:103.151.192.0/23 ip4:185.12.80.0/22 ip4:188.172.128.0/20 ip4:192.161.144.0/20 ip4:216.198.0.0/18 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:35.190.247.0/24 ip4:64.233.160.0/19 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:108.177.8.0/21 ip4:173.194.0.0/16 ip4:209.85.128.0/17 ip4:216.58.192.0/19 ip4:216.239.32.0/19 ip6:2001:4860:4000::/36 ip6:2404:6800:4000::/36 ip6:2607:f8b0:...[truncated]
v=DMARC1; p=reject; adkim=s; aspf=s; pct=100;

NS 4

ns-1064.awsdns-05.org
ns-1602.awsdns-08.co.uk
ns-491.awsdns-61.com
ns-634.awsdns-15.net

SOA 1

ns-1064.awsdns-05.org awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common Name	Issuer	Expires
`*.production.tandem.net`	C=US, O=Amazon, CN=Amazon RSA 2048 M01	Sat, 30 Jan 2027 23:59:59 +0000
`Amazon RSA 2048 M01`	C=US, O=Amazon, CN=Amazon Root CA 1	Fri, 23 Aug 2030 22:21:28 +0000
`Amazon Root CA 1`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2	Thu, 31 Dec 2037 01:00:00 +0000

Subdomains (2)

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 tandem.net. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 830fe7e0-9dc3-4ae6-8e01-1d7fe5aa57af
Output Hash: 8ecda775da8bfa5316978d1d426aee9de1e922881095acd7143f73ca69bec51e
Signature: ed25519:3ee72b3e40e084b77f782868b1b40f077e39e42ee7cc33d7667a592fef941c27c32eb38a7cd2f5e0d0a9560d3fdb00415a4eb2f7118aa14834dc670b096e5b08
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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