Domain diagnostics instapaper.com

Diagnose potential problems with a given domain.

You can bookmark this utility as diag.domains.

Global nameservers

Google Public DNS

ns-1077.awsdns-06.org (1, TTL: 900)

Cloudflare DNS

ns-1077.awsdns-06.org (1, TTL: 900)

Quad9

ns-1077.awsdns-06.org (1, TTL: 900)

ns1.simply.com

DNS request failed: The name server refuses to perform the specified operation for policy reasons.

ns2.simply.com

DNS request failed: The name server refuses to perform the specified operation for policy reasons.

ns3.simply.com

DNS request failed: The name server refuses to perform the specified operation for policy reasons.

External tests

DNS zone As seen by Google Public DNS

Webservers

instapaper.com
Host Target Reverse
instapaper.com 44.235.115.137 ec2-44-235-115-137.us-west-2.compute.amazonaws.com
instapaper.com 52.38.186.143 ec2-52-38-186-143.us-west-2.compute.amazonaws.com
instapaper.com 52.35.33.100 ec2-52-35-33-100.us-west-2.compute.amazonaws.com
www.instapaper.com
Host Target Reverse
www.instapaper.com 52.35.33.100 ec2-52-35-33-100.us-west-2.compute.amazonaws.com
www.instapaper.com 44.235.115.137 ec2-44-235-115-137.us-west-2.compute.amazonaws.com
www.instapaper.com 52.38.186.143 ec2-52-38-186-143.us-west-2.compute.amazonaws.com

Inbound mail

Host # Target IP Reverse
instapaper.com 10 mxa.mailgun.org 34.149.236.64 64.236.149.34.bc.googleusercontent.com
instapaper.com 20 mxb.mailgun.org 34.149.236.64 42.13.160.34.bc.googleusercontent.com

Outbound mail

SPF record

Value
v=spf1 include:_spf.google.com include:mailgun.org include:amazonses.com a mx ptr ~all
No Simply.com SPF record found
SPF issue: [notice] [domain: instapaper.com] [record: v=spf1 include:_spf.google.com include:mailgun.org include:amazonses.com a mx ptr ~all] The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
SPF issue: [warning] [domain: instapaper.com] [record: v=spf1 include:_spf.google.com include:mailgun.org include:amazonses.com a mx ptr ~all] The total number of the 'include', 'a', 'mx', 'ptr', 'exists' mechanisms and the 'redirect' modifiers is 13 (it should not exceed 10)

DKIM records

Simply.com DKIM records not found
Name Value

DMARC record

Name Value
_dmarc.instapaper.com v=DMARC1;p=none;rua=mailto:dmarc@team.instapaper.com

TXT records

Name Value
instapaper.com fq07k23gww34t0th8xz81743r8kwfz8n
instapaper.com SPF v=spf1 include:_spf.google.com include:mailgun.org include:amazonses.com a mx ptr ~all
instapaper.com keybase-site-verification=Vqh2BYsLdYqXiUncKQNYHpzn9EqTfOLqGs94StKJ0qo
instapaper.com google-site-verification=L3fg9YN1Xa-KSF9QCTSkUY_yZKxpO_gpNkI2XrBjYVs
instapaper.com wdvdhjh064671mctywk9x63vcfj50r8c

Nameservers

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

WHOIS

Domain Name: INSTAPAPER.COM
Registry Domain ID: 690120462_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.tucows.com
Registrar URL: http://tucowsdomains.com
Updated Date: 2020-11-12T17:46:50
Creation Date: 2006-11-30T03:17:49
Registrar Registration Expiration Date: 2025-11-30T03:17:49
Registrar: TUCOWS, INC.
Registrar IANA ID: 69
Reseller: Hover
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registry Registrant ID: 
Registrant Name: Contact Privacy Inc. Customer 0134808021
Registrant Organization: Contact Privacy Inc. Customer 0134808021
Registrant Street: 96 Mowat Ave 
Registrant City: Toronto
Registrant State/Province: ON
Registrant Postal Code: M6K 3M1
Registrant Country: CA
Registrant Phone: +1.4165385457
Registrant Phone Ext: 
Registrant Fax: 
Registrant Fax Ext: 
Registrant Email: instapaper.com -@- contactprivacy.com
Registry Admin ID: 
Admin Name: Contact Privacy Inc. Customer 0134808021
Admin Organization: Contact Privacy Inc. Customer 0134808021
Admin Street: 96 Mowat Ave 
Admin City: Toronto
Admin State/Province: ON
Admin Postal Code: M6K 3M1
Admin Country: CA
Admin Phone: +1.4165385457
Admin Phone Ext: 
Admin Fax: 
Admin Fax Ext: 
Admin Email: instapaper.com -@- contactprivacy.com
Registry Tech ID: 
Tech Name: Contact Privacy Inc. Customer 0134808021
Tech Organization: Contact Privacy Inc. Customer 0134808021
Tech Street: 96 Mowat Ave 
Tech City: Toronto
Tech State/Province: ON
Tech Postal Code: M6K 3M1
Tech Country: CA
Tech Phone: +1.4165385457
Tech Phone Ext: 
Tech Fax: 
Tech Fax Ext: 
Tech Email: instapaper.com -@- contactprivacy.com
Name Server: ns-222.awsdns-27.com
Name Server: ns-887.awsdns-46.net
Name Server: ns-1077.awsdns-06.org
Name Server: ns-2040.awsdns-63.co.uk
DNSSEC: unsigned
Registrar Abuse Contact Email: domainabuse -@- tucows.com
Registrar Abuse Contact Phone: +1.4165350123
URL of the ICANN WHOIS Data Problem Reporting System: https://icann.org/wicf
>>> Last update of WHOIS database: 2025-07-09T02:54:04Z <<<

"For more information on Whois status codes, please visit https://icann.org/epp"

Registration Service Provider:
    Hover, help -@- hover.com
    +1.8667316556
    https://support.hover.com


The Data in the Tucows Registrar WHOIS database is provided to you by Tucows
for information purposes only, and may be used to assist you in obtaining
information about or related to a domain name's registration record.

Tucows makes this information available "as is," and does not guarantee its
accuracy.

By submitting a WHOIS query, you agree that you will use this data only for
lawful purposes and that, under no circumstances will you use this data to:
a) allow, enable, or otherwise support the transmission by e-mail,
telephone, or facsimile of mass, unsolicited, commercial advertising or
solicitations to entities other than the data recipient's own existing
customers; or (b) enable high volume, automated, electronic processes that
send queries or data to the systems of any Registry Operator or
ICANN-Accredited registrar, except as reasonably necessary to register
domain names or modify existing registrations.

The compilation, repackaging, dissemination or other use of this Data is
expressly prohibited without the prior written consent of Tucows.

Tucows reserves the right to terminate your access to the Tucows WHOIS
database in its sole discretion, including without limitation, for excessive
querying of the WHOIS database or for failure to otherwise abide by this
policy.

Tucows reserves the right to modify these terms at any time.

By submitting this query, you agree to abide by these terms.

RECORD DOES NOT SIGNIFY DOMAIN AVAILABILITY.

WHOIS result is cached for 15 minutes

HTTP trace

1
http://instapaper.com
HTTP 301
52.38.186.143
Namelookup
18 ms
Connect
174 ms
Pre-transfer
174 ms
Start-transfer (TTFB)
331 ms
HTTP/1.1 301 Moved Permanently
Server: awselb/2.0
Date: Wed, 09 Jul 2025 02:54:04 GMT
Content-Type: text/html
Content-Length: 134
Connection: keep-alive
Location: https://instapaper.com:443/
2
https://instapaper.com:443/
HTTP 200
44.235.115.137
Namelookup
17 ms
Connect
181 ms
App connect
517 ms
Pre-transfer
517 ms
Start-transfer (TTFB)
686 ms
HTTP/1.1 200 OK
Date: Wed, 09 Jul 2025 02:54:05 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 12490
Connection: keep-alive
Content-Security-Policy: default-src 'self' d2kfnvwohu0503.cloudfront.net staticinstapaper.s3.amazonaws.com staticinstapaper.s3.dualstack.us-west-2.amazonaws.com;script-src 'self' 'nonce-jhqdgZTGnK' 'strict-dynamic' 'unsafe-inline' 'unsafe-eval' js.stripe.com d2kfnvwohu0503.cloudfront.net staticinstapaper.s3.amazonaws.com staticinstapaper.s3.dualstack.us-west-2.amazonaws.com use.typekit.net www.google-analytics.com www.google.com www.gstatic.com cdn.carbonads.com srv.carbonads.net;font-src 'self' d2kfnvwohu0503.cloudfront.net staticinstapaper.s3.amazonaws.com staticinstapaper.s3.dualstack.us-west-2.amazonaws.com *.typekit.net netdna.bootstrapcdn.com;style-src 'self' netdna.bootstrapcdn.com d2kfnvwohu0503.cloudfront.net staticinstapaper.s3.amazonaws.com staticinstapaper.s3.dualstack.us-west-2.amazonaws.com 'unsafe-inline';connect-src 'self' *.carbonads.net carbonads.net js.stripe.com www.google-analytics.com;frame-src 'self' js.stripe.com *.youtube.com youtube.com *.vimeo.com vimeo.com www.google.com ifttt.com;img-src * data:;
Strict-Transport-Security: max-age=631138519
Server: InstapaperServer
Etag: "001dd0230c9d4580165b1765fbb829a70f2b2762"
X-Frame-Options: SAMEORIGIN