kaleyra.com

Observed Aug 16, 2026, 06:48 UTC (11h 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.

Up right now
Runs onCloudflare
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesAppleAtlassianGoogle Search ConsolePostmanAtlassian Statuspage
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat kaleyra.com actually stands on - every host below is a signed observation
kaleyra.com
A / AAAA
54.73.117.185
Cloudflareserves the site
NS
ns-1029.awsdns-00.orgns-1960.awsdns-53.co.ukns-376.awsdns-47.comns-600.awsdns-11.net
awsdns-00.org + awsdns-53.co.uk + moreanswers its DNS
MX
kaleyra-com.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.kaleyra.com
Let's Encryptissued its certificate

DNS Records

A 1

  • 54.73.117.185

MX 1

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

TXT 38

  • MS=ms16325633
  • MS=ms50306280
  • MS=ms82818441
  • MS=ms94778335
  • apple-domain-verification=HhHHSratTbnB0oiY
  • atlassian-domain-verification=2TkfhGYkT+cjSAec68dSVuQ+HLdXUURiWuCGCvWfkATjq7ME+3IT0Bl4GHsFftZe
  • atlassian-sending-domain-verification=c572be64-1c79-45f8-8862-020532027a77
  • be1bd3b652d1b065bb89f6c5d22c61b281fc56cc
  • google-site-verification=4e58WrH1QWozBrus4WsyNOxvBFmgSorbCr83uQfBda8
  • google-site-verification=p7N1mZwcI06LB4Lxy_jm5etQMMVs1Qmldv_Eca8o9h8

NS 4

  • ns-1029.awsdns-00.org
  • ns-1960.awsdns-53.co.uk
  • ns-376.awsdns-47.com
  • ns-600.awsdns-11.net

SOA 1

  • ns-376.awsdns-47.com awsdns-hostmaster.amazon.com

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine; pct=100; rua=mailto:cis-dmarc_reports@kaleyra.com;ruf=mailto:cis-dmarc_forensicreports@kaleyra.com; fo=1; ri=3600

TLS Certificates (3)

Common NameIssuerExpires
www.kaleyra.com C=US, O=Let's Encrypt, CN=YR2 Mon, 21 Sep 2026 08:13:47 +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 (1)

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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_73cdfb57c0d04bdf
Output Hash
36843cdd2957585f3d7c3359e0ce5f2a619a80668d6f91eae904cc8c0235f7ea
Signature
ed25519:edc5673bd764fc25b8da2bd58bf5f9a89a0ad98d461b169989e327a630ba265962b4ef747313ddbed07e419437cf5538917806aa31d44cd3c1b83944653f7608
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT39,303 material changesacross 37,396 domains · 24h to ~2h ago · -2,256 vs yesterdayROTATION67 domains moved DNS from magpiedns.com to koaladns.com, 62 moved backa rotation loop, not a migration · 24hEMAIL DRIFT3 domains switched email provider24hNOW589 curated domains not reachable+94 vs yesterdaySITE ERRORS36,075 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,370 sites429 rate-limit / 403 bot-block, a posture signal