CONTINUOUS INTERNET TELEMETRY24H DRIFT2,031 material changesacross 1,921 domains · -47 vs yesterdayDNS DRIFT15 domains changed DNS providertop destination alidns.comEMAIL DRIFT8 domains switched email providertop destination google.comCERT DRIFT46 domains switched issuing CA24hNOW1,194 curated domains not answering+68 vs yesterdayERRORS9,502 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED25,869 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT2,031 material changesacross 1,921 domains · -47 vs yesterdayDNS DRIFT15 domains changed DNS providertop destination alidns.comEMAIL DRIFT8 domains switched email providertop destination google.comCERT DRIFT46 domains switched issuing CA24hNOW1,194 curated domains not answering+68 vs yesterdayERRORS9,502 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED25,869 throttled or blocked our scanner429 rate-limit / 403 bot-block

grammarly.net

Observed Jul 18, 2026, 12:46 UTC (12h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onAmazon
Secured byAmazon
Registered withMarkMonitor Inc.
1 subdomain · tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat grammarly.net actually stands on - every host below is a signed observation
grammarly.net
A / AAAA
3.219.6.71100.27.66.4254.84.75.133
Amazonserves the site
NS
ns-1254.awsdns-28.orgns-1543.awsdns-00.co.ukns-278.awsdns-34.comns-991.awsdns-59.net
awsdns-28.org + awsdns-00.co.uk + moreanswers its DNS
TLS
grammarly.net
Amazonissued its certificate

DNS Records

A 3

  • 3.219.6.71
  • 100.27.66.42
  • 54.84.75.133

TXT 1

  • v=spf1 -all

NS 4

  • ns-1254.awsdns-28.org
  • ns-1543.awsdns-00.co.uk
  • ns-278.awsdns-34.com
  • ns-991.awsdns-59.net

SOA 1

  • ns-1543.awsdns-00.co.uk awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common NameIssuerExpires
grammarly.net C=US, O=Amazon, CN=Amazon RSA 2048 M04 Thu, 01 Oct 2026 23:59:59 +0000
Amazon RSA 2048 M04 C=US, O=Amazon, CN=Amazon Root CA 1 Fri, 23 Aug 2030 22:26:35 +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 (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; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for grammarly.net. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
cc9c58e1-ea88-45de-95ba-9bca82d0b3f8
Output Hash
0792f87648435fffd5fd8fa2b4bdc467df838a71d564c382120c56ec9da1ae94
Signature
ed25519:c0468072bb6a503bdb8bb37e1c4e5dfe2a16674749a452daee107c6b0ad34afaadc8bfbf9993121037aa5846303c87253a0a12fef213b4b9fb8654e9f0e53e0a
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser