CONTINUOUS INTERNET TELEMETRY24H DRIFT10,474 material changesacross 10,081 domains · last 24h · -155 vs yesterdayDNS DRIFT663 domains changed DNS providertop destination cloudflare.com · -117 vs yesterdayEMAIL DRIFT176 domains switched email providertop destination google.com · +6 vs yesterdayCERT DRIFT227 domains switched issuing CA24h · -3 vs yesterdayNOW701 curated domains not reachable-648 vs yesterdaySITE ERRORS18,096 sites serving errorslast probe · 5xx / 404 / TLSTHROTTLED96,705 throttled or blocked our scanner429 rate-limit / 403 bot-block

piriform.com

Observed Jul 22, 2026, 00:28 UTC (2d 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.

Not responding
Runs onFastly
Email byMicrosoft 365
Registered withMarkMonitor Inc.
Also usesAtlassian
tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat piriform.com actually stands on - every host below is a signed observation
piriform.com
A / AAAA
151.101.128.64151.101.0.64151.101.64.64151.101.192.64
Fastlyserves the site
NS
ns-1000.awsdns-61.netns-1467.awsdns-55.orgns-1582.awsdns-05.co.ukns-178.awsdns-22.com
awsdns-61.net + awsdns-55.org + moreanswers its DNS
MX
piriform-com.mail.protection.outlook.com
Microsoft 365receives its email

DNS Records

A 4

  • 151.101.128.64
  • 151.101.0.64
  • 151.101.64.64
  • 151.101.192.64

MX 1

  • 0piriform-com.mail.protection.outlook.com

TXT 5

  • MS=ms42961515
  • _globalsign-domain-verification=O81xyb7YxpdGeHWkniit_VBT4vTXz9__NFrNMoTwFg
  • atlassian-domain-verification=gF08ybBOyoHhwVVttGhWqX49V7tyIpaLQIwYYE0p90JZMoQCYeBGb0XWODxAfgU/
  • v=spf1 include:spf.protection.outlook.com include:sendgrid.net ~all
  • v=DMARC1; p=quarantine; sp=none; rua=mailto:c3_admin+rua_piriform@piriform.com; ruf=mailto:c3_admin+ruf_piriform@piriform.com; rf=afrf; pct=100; ri=86400

NS 4

  • ns-1000.awsdns-61.net
  • ns-1467.awsdns-55.org
  • ns-1582.awsdns-05.co.uk
  • ns-178.awsdns-22.com

SOA 1

  • ns-1467.awsdns-55.org awsdns-hostmaster.amazon.com

CAA 5

  • issue "amazon.com"
  • issue "digicert.com"
  • issue "letsencrypt.org"
  • issue "pki.goog"
  • issue "sectigo.com"

TLS Certificates (0)

None.

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

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

Ed25519 Receipt

Receipt ID
rcpt_45158af6a97796b3
Output Hash
39009091b97020babee605fde76cac6cdd20213c52d735ef5a7ef4263b4ad200
Signature
ed25519:b95636e9d0854e9922fb423bbe5abd669fb1d071521432d22e4c8d42b9ff088ebbe2c4e36163c584e9f13cda51a51afca93263d83b8598ba4115ae091ca7d105
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
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