chemspider.com
Observed Jul 19, 2026, 11:46 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byMimecast
Also usesGoogle Search Console
1 subdomain · 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
13.248.160.13776.223.34.124
Cloudflareserves the site
NS
a7-67.akam.neta3-65.akam.neta1-90.akam.neta22-67.akam.net+2 more
akam.netanswers its DNS
MX
eu-smtp-inbound-1.mimecast.comeu-smtp-inbound-2.mimecast.com
Mimecastreceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.chemspider.com/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time157 ms
DNS resolutionNOERROR
Redirect chain
https://www.chemspider.com/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 2
13.248.160.13776.223.34.124
MX 2
10eu-smtp-inbound-1.mimecast.com10eu-smtp-inbound-2.mimecast.com
TXT 5
google-site-verification=Dx2K2U99zQOhg72BNVPX0JCvry2uJPB7LOYdXktnbwI5z5pz87d4c9pklbxl805g2xh2pj5kyrvg0s4px6dx1bf76jgt7cq6wq33b2zcd10v=spf1 include:eu._netblocks.mimecast.com ~allv=DMARC1; p=reject; rua=mailto:0e4420c99bf9995@rep.dmarcanalyzer.com; ruf=mailto:0e4420c99bf9995@for.dmarcanalyzer.com; fo=1;
NS 6
a7-67.akam.neta3-65.akam.neta1-90.akam.neta22-67.akam.neta28-64.akam.neta6-66.akam.net
SOA 1
a28-64.akam.net dnsadmin.rsc.org
TLS Certificates (0)
None.
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 receiptEd25519 Receipt
- Receipt ID
53a99909-1901-433a-b782-ef2dbbbe1dd8- Output Hash
819a1ed7f4d76c86a719fa9aec6a5dbc4af2a7818a970cdbedddc771d258e668- Signature
ed25519:addc90a557ae657893732a9caead47aabc11d1a0d23c3e8d29287ca3363e9441902b2883ab6edbda19b9c221b6780663617060baa1e4a289b1c2159a6d96d30b- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast