readtheory.org
Observed Jul 20, 2026, 01:26 UTC (23h ago). Every field below was attested with an Ed25519 signature at scan time.
Guarded by a firewall
Runs onCloudflare
Email byGoogle Workspace
Also usesHubSpotGoogle Search ConsoleFacebook/MetaSlack
3 subdomains · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat readtheory.org actually stands on - every host below is a signed observation
readtheory.org
A / AAAA
3.169.202.423.169.202.143.169.202.1103.169.202.26
Cloudflareserves the site
NS
ns-1016.awsdns-63.netns-1728.awsdns-24.co.ukns-279.awsdns-34.comns-1496.awsdns-59.org
awsdns-63.net + awsdns-24.co.uk + moreanswers its DNS
MX
aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.com+1 more
Google Workspacereceives 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 time87 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 4
3.169.202.423.169.202.143.169.202.1103.169.202.26
MX 5
1aspmx.l.google.com10alt4.aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com
TXT 11
v=spf1 include:_spf.google.com include:49720122.spf55.hubspotemail.net ~allgoogle-site-verification=qIBLZcFXe6Ekh5LWC0M_izlcquXDjyaam4p5kaCzJo8facebook-domain-verification=60f05o61e42q11ojpelokkdnkm3fwhgoogle-site-verification=71PbSnXDIPw7ewdPtjBexZWcKQLaFh5dCD_I1ZXYRhcgoogle-site-verification=MBKUrvNhF1B7wJ023xcftWCTsk99VRvHZ_Voxan9p_kapple-domain-verification=88xZ59mEFYOrGjX8google-site-verification=eczHVn4MvnwmWP9dsct3um5Efe3_gBSXgyQ5IwmrjjUslack-domain-verification=C9I7mE04SIHBGanc1RgfGyMmQkoyusHsh7kbkjeCgoogle-site-verification=KES_qaJPoTfdaJGFKk55rsZ14B8h_3BLdk6chNVcDN8v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:dmarc-reports@readtheory.org; ruf=mailto:dmarc-failures@readtheory.org; rf=afrf; pct=100; ri=86400
NS 4
ns-1016.awsdns-63.netns-1728.awsdns-24.co.ukns-279.awsdns-34.comns-1496.awsdns-59.org
SOA 1
ns-279.awsdns-34.com awsdns-hostmaster.amazon.com
TLS Certificates (0)
None.
Subdomains (3)
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
a97ce07f-2eae-4302-9439-114842d0ff9c- Output Hash
ef82165532776d15f1f932898f72f5d4d387c4d7b6d8d103aaf796ba1db5db05- Signature
ed25519:b2d2a89ba8f77f4810c851968f3748c131d0d6f2c0a9f5438b52dcc2d8caff9513d0bb186309f0d038173d56778afcb89338ad255592660004d3fba3a5db2108- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast