instapaper.com

Observed 2026-07-13T00:18:09.219102733+00:00 (10h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byGoogle (SPF sender)

Secured byAmazon

Also usesGoogle Search Console

IPv6 · push_legacy

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

INFRASTRUCTURE MAPwhat instapaper.com actually stands on - every host below is a signed observation

instapaper.com

A / AAAA

3.170.42.603.170.42.133.170.42.923.170.42.48+8 more

Amazonserves the site

ns-1077.awsdns-06.orgns-2040.awsdns-63.co.ukns-222.awsdns-27.comns-887.awsdns-46.net

awsdns-06.org + awsdns-63.co.uk + moreanswers its DNS

mxa.mailgun.orgmxb.mailgun.org

Google (SPF sender)receives its email

TLS

*.instapaper.com

Amazonissued its certificate

DNS Records

A 4

3.170.42.60
3.170.42.13
3.170.42.92
3.170.42.48

AAAA 8

2600:9000:2870:9000:6:abe2:1400:93a1
2600:9000:2870:9e00:6:abe2:1400:93a1
2600:9000:2870:6000:6:abe2:1400:93a1
2600:9000:2870:a00:6:abe2:1400:93a1
2600:9000:2870:a400:6:abe2:1400:93a1
2600:9000:2870:b600:6:abe2:1400:93a1
2600:9000:2870:3000:6:abe2:1400:93a1
2600:9000:2870:3a00:6:abe2:1400:93a1

MX 2

10mxa.mailgun.org
20mxb.mailgun.org

TXT 6

fq07k23gww34t0th8xz81743r8kwfz8n
google-site-verification=L3fg9YN1Xa-KSF9QCTSkUY_yZKxpO_gpNkI2XrBjYVs
keybase-site-verification=Vqh2BYsLdYqXiUncKQNYHpzn9EqTfOLqGs94StKJ0qo
v=spf1 include:_spf.google.com include:mailgun.org include:amazonses.com a mx -all
wdvdhjh064671mctywk9x63vcfj50r8c
v=DMARC1;p=none;rua=mailto:dmarc@team.instapaper.com

NS 4

ns-1077.awsdns-06.org
ns-2040.awsdns-63.co.uk
ns-222.awsdns-27.com
ns-887.awsdns-46.net

SOA 1

ns-1077.awsdns-06.org awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common Name	Issuer	Expires
`*.instapaper.com`	C=US, O=Amazon, CN=Amazon RSA 2048 M04	Sat, 20 Feb 2027 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 (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 instapaper.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 07824c30-ad56-4a1d-bded-13e7c6070bb0
Output Hash: 882331a1c379cac5baa61c603be88ae2e1c5a7a4492dba4dceedf11197ab4ede
Signature: ed25519:9dbff9599fd7027c90f0190407297f0119a9140730360aca8073a52e9ecae7a40ba9d6645b9314eae3162e70ce907fd16c0d6226bb5f7b4bbe723e8d8f03f90c
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/instapaper.com