preprints.org

Observed 2026-07-13T12:27:33.713Z (9h ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall

Runs onCloudflare

IPv6 · 2 subdomains · tranco_40k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat preprints.org actually stands on - every host below is a signed observation

preprints.org

A / AAAA

23.212.62.21523.212.62.2172600:1406:2e00:49::172e:d8cb2600:1406:2e00:49::172e:d8c6

Cloudflareserves the site

a26-65.akam.neta6-66.akam.neta8-66.akam.neta5-67.akam.net+2 more

akam.netanswers its DNS

mail.mdpi.com

mdpi.comreceives its email

HTTPS probe

bot_blocked Blocked our probe (WAF / bot protection) 403 blocked by cloudflare - bot protection active

HTTP status403

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time24 ms

DNS resolutionNOERROR

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

DNS Records

A 2

23.212.62.215
23.212.62.217

AAAA 2

2600:1406:2e00:49::172e:d8cb
2600:1406:2e00:49::172e:d8c6

MX 1

10mail.mdpi.com

TXT 2

v=spf1 mx ip4:195.65.194.219 ip4:212.243.204.40 include:spf.mdpi.com -all
v=DMARC1;p=quarantine;rua=mailto:info@preprints.org;ruf=mailto:info@preprints.org

NS 6

a26-65.akam.net
a6-66.akam.net
a8-66.akam.net
a5-67.akam.net
a1-160.akam.net
a3-64.akam.net

SOA 1

a1-160.akam.net hostmaster.preprints.org

TLS Certificates (0)

None.

Subdomains (2)

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 preprints.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 646eca38-dfef-4f0a-b8af-74e18f142b2f
Output Hash: 8622e60e6d2816c56abf4d15043c5b9104412717420bd7beb2687fab4ecf7a7f
Signature: ed25519:defe09e685833098aa7be3283415c415c0e70ae25ebeb6ab268f02e626ddebf87b887ac89efde6b0c580a7daa543d5012e9320af116f0ffb3ebff77e9d803f01
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/preprints.org