petrobras.com

Observed Jul 18, 2026, 12:04 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onGoogle

Email byMicrosoft 365

Secured byLet's Encrypt

Registered withMarkMonitor Inc.

Also usesGoogle Search Console

1 subdomain · energy

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

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

petrobras.com

A / AAAA

34.102.155.121

Googleserves the site

ns-1389.awsdns-45.orgns-1719.awsdns-22.co.ukns-200.awsdns-25.comns-685.awsdns-21.net

awsdns-45.org + awsdns-22.co.uk + moreanswers its DNS

petrobras-com.mail.protection.outlook.com

Microsoft 365receives its email

TLS

petrobras.com.br

Let's Encryptissued its certificate

DNS Records

A 1

34.102.155.121

MX 1

20petrobras-com.mail.protection.outlook.com

TXT 9

3l43lbd6qo519vq9vivt0rmhq4
MS=ms15971481
apple-domain-verification=gUzGUnTwoe0lAs1S
autodesk-domain-verification=U9P-DE1VFxNZKqh1TZP5
cisco-ci-domain-verification=40f691551659a28002c1dff5a58a25d516bb6d6d10242bf6b8d9dca79d4aabd6
google-site-verification=eJUfrf20Zhvx6zQXpX1NFgaF3VkX-eEYUZMdteAmAvo
knowbe4-site-verification=d658efcb44cc672c87d082d349abdb69
v=spf1 mx ip4:164.85.4.0/23 ip4:164.85.66.0/24 ip4:186.121.204.52 ip4:200.87.198.113 include:spf.protection.outlook.com include:_spf.salesforce.com -all
v=DMARC1; p=quarantine; rua=mailto:mailauth-reports@petrobras.com

NS 4

ns-1389.awsdns-45.org
ns-1719.awsdns-22.co.uk
ns-200.awsdns-25.com
ns-685.awsdns-21.net

SOA 1

ns-1719.awsdns-22.co.uk hostmaster.petrobras.com.br

TLS Certificates (3)

Common Name	Issuer	Expires
`petrobras.com.br`	C=US, O=Let's Encrypt, CN=YR1	Tue, 22 Sep 2026 21:57:39 +0000
`YR1`	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 (1)

www.petrobras.com

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 petrobras.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: d6af4319-bbc1-4506-89a1-0a8b11e035af
Output Hash: 017eb59e68372d6693eec517a61f4df3e7408118e579049edf8b99d5589bca1a
Signature: ed25519:8f245fcb3576dbba79fbb280c32327ce4d5ea6f5d4f7f1bab7080115ddeaeca73a521a9f76c3acdd5d7ae0d3e043dbd32f35b500db39653058f0a23d20970702
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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