CONTINUOUS INTERNET TELEMETRY24H DRIFT3,068 material changesacross 2,755 domains · -330 vs yesterdayDNS DRIFT23 domains changed DNS providertop destination cloudflare.com · -4 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination h-email.net · -3 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,309 curated domains not answering-6,409 vs yesterdayERRORS10,957 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT3,068 material changesacross 2,755 domains · -330 vs yesterdayDNS DRIFT23 domains changed DNS providertop destination cloudflare.com · -4 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination h-email.net · -3 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,309 curated domains not answering-6,409 vs yesterdayERRORS10,957 responded with an errorlast probe · 5xx / 404 / 429 / 403

issuu.com

Observed 2026-07-12T20:14:42.535Z (17h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCloudflare
Email byGoogle Workspace
Registered withGoDaddy.com, LLC
Also usesGoogle Search ConsoleAtlassianMiroFacebook/MetaDocuSign
7 subdomains · tranco_1k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat issuu.com actually stands on - every host below is a signed observation
issuu.com
A / AAAA
151.101.65.55151.101.129.55151.101.193.55151.101.1.55
Cloudflareserves the site
NS
ns-1582.awsdns-05.co.ukns-426.awsdns-53.comns-1343.awsdns-39.orgns-757.awsdns-30.net
awsdns-05.co.uk + awsdns-53.com + moreanswers its DNS
MX
aspmx.l.google.comaspmx2.googlemail.comalt1.aspmx.l.google.comalt2.aspmx.l.google.com+1 more
Google Workspacereceives its email

HTTPS probe

ok Responding normally (2xx) 200 OK
HTTP status200
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time212 ms
DNS resolutionNOERROR
MCP This domain advertises an AI service endpoint at _mcp._tcp.
v=spf1 include:mail.zendesk.com include:sendgrid.net include:_spf.google.com -all

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

DNS Records

A 4

  • 151.101.65.55
  • 151.101.129.55
  • 151.101.193.55
  • 151.101.1.55

MX 5

  • 10aspmx.l.google.com
  • 40aspmx2.googlemail.com
  • 20alt1.aspmx.l.google.com
  • 30alt2.aspmx.l.google.com
  • 50aspmx3.googlemail.com

TXT 23

  • TAILSCALE-QTxUnggBiedjypLchTwB
  • google-site-verification=GBizRM9Z_p17clZXSQMnJjIdyXLjCoDJY6aYG-kbwnQ
  • v=spf1 include:mail.zendesk.com include:_spf.sparkpostmail.com include:_spf.google.com include:amazonses.com include:spf.mandrillapp.com -all
  • google-site-verification=0H3HL1KxMhfdap89AcuCKadjU2QFxgZ0I7CXePAEReE
  • apple-domain-verification=ElKeVvlCb1VtMkhI
  • rippling-domain-verification=217697edd61756fc
  • atlassian-domain-verification=+SyUybAN4ilkkpHjnTS9UW9fhbIiAlFXshc97OU0IZw+UHVP0I9omo5Jzo7Qg7K+
  • MS=ms41162561
  • miro-verification=50d48af206c43d8ba6a5c568d0b68365b08fd197
  • google-site-verification=3yHgeX--mAcr74szFR5gTbIbD1TkraSFdZS_xIm9jMY

NS 4

  • ns-1582.awsdns-05.co.uk
  • ns-426.awsdns-53.com
  • ns-1343.awsdns-39.org
  • ns-757.awsdns-30.net

SOA 1

  • ns-1582.awsdns-05.co.uk awsdns-hostmaster.amazon.com

TLS Certificates (0)

None.

Subdomains (7)

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

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

Ed25519 Receipt

Receipt ID
8db13470-31d2-4565-a1b4-a2122ccd4b67
Output Hash
ecf861248664bd95a38d3918a229b8fdb87c5417d8c7b28c5a9414ad3a79c7c1
Signature
ed25519:3e19a350629018459d7a403a67711e1070cc80ee7eeff704d674125fdff832603e6f1972ac995c75481c893182f9052225856958d38ab5f896e8482672c7110f
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser