CONTINUOUS INTERNET TELEMETRY24H DRIFT7,596 material changesacross 7,200 domains · last 24h · -2,819 vs yesterdayDNS DRIFT462 domains changed DNS providertop destination cloudflare.com · -197 vs yesterdayEMAIL DRIFT108 domains switched email providertop destination google.com · -59 vs yesterdayCERT DRIFT155 domains switched issuing CA24h · -64 vs yesterdayNOW494 curated domains not reachable-209 vs yesterdaySITE ERRORS17,409 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 96,755 sites429 rate-limit / 403 bot-block, a posture signal

chemspider.com

Observed Jul 24, 2026, 01:52 UTC (5h 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.

Guarded by a firewall
Email byMimecast
Secured byLet's Encrypt
Also usesGoogle Search Console
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat chemspider.com actually stands on - every host below is a signed observation
chemspider.com
A / AAAA
76.223.34.12413.248.160.137
unattributedserves the site
NS
a1-90.akam.neta28-64.akam.neta7-67.akam.neta6-66.akam.net+2 more
akam.netanswers its DNS
MX
eu-smtp-inbound-2.mimecast.comeu-smtp-inbound-1.mimecast.com
Mimecastreceives its email
TLS
chemspider.com
Let's Encryptissued its certificate

DNS Records

A 2

  • 76.223.34.124
  • 13.248.160.137

MX 2

  • 10eu-smtp-inbound-2.mimecast.com
  • 10eu-smtp-inbound-1.mimecast.com

TXT 5

  • 5z5pz87d4c9pklbxl805g2xh2pj5kyrv
  • g0s4px6dx1bf76jgt7cq6wq33b2zcd10
  • google-site-verification=Dx2K2U99zQOhg72BNVPX0JCvry2uJPB7LOYdXktnbwI
  • v=spf1 include:eu._netblocks.mimecast.com ~all
  • v=DMARC1; p=reject; rua=mailto:0e4420c99bf9995@rep.dmarcanalyzer.com; ruf=mailto:0e4420c99bf9995@for.dmarcanalyzer.com; fo=1;

NS 6

  • a1-90.akam.net
  • a28-64.akam.net
  • a7-67.akam.net
  • a6-66.akam.net
  • a22-67.akam.net
  • a3-65.akam.net

SOA 1

  • a28-64.akam.net dnsadmin.rsc.org

TLS Certificates (3)

Common NameIssuerExpires
chemspider.com C=US, O=Let's Encrypt, CN=YR2 Tue, 01 Sep 2026 10:21:56 +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 (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 chemspider.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_b34ca58f92f3dce6
Output Hash
0843d63c2358f7a90d724f13e565d7da87af504b8e04f7a8d2449a9ac18ac256
Signature
ed25519:6683cd25317c43ba3de1e2bb4c725d77f2fe0bb4419fa5282ee6b0161880b6dd2608133c66c2a6d1c50ac06acb91e6b10fc879c92c90b12826ad1b4559010502
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser