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63
Total
50
DNS
0
Email
84
Security
85
Network
100
Availability
Domainpubmed.ncbi.nlm.nih.gov
IPv41
IPv61
MX records0
StatusActive
Domain technical report

PubMed

pubmed.ncbi.nlm.nih.gov

PubMed® comprises more than 40 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.

Generated: 2026-08-08T17:15:46-05:00 · Cached result

JSONCSVPDFVisit site
IPv41
IPv61
MX0
NS0

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

!
Name server redundancy0 / 20 pts · Dns

0 NS record(s); 2 or more required.

!
SOA record0 / 10 pts · Dns

Authoritative zone record.

!
DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

!
MX records0 / 20 pts · Mail

0 MX record(s).

!
SPF0 / 25 pts · Mail

SPF policy not found.

!
DMARC0 / 25 pts · Mail

DMARC policy not found.

!
DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

48 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: 59.134.107.34.bc.googleusercontent.com

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓
IPv6 connectivity35 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
34.107.134.59

AAAA

1 record(s)
2600:1901:0:c831::

CNAME

0 record(s)
—

Not configured

MX

0 record(s)
—

Not configured

TXT

0 record(s)
—

Not configured

NS

0 record(s)
—

Not configured

SOA

0 record(s)
—

Not configured

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

2 record(s)
A 8 5 86400 20260818081036 20260724080151 16545 ncbi.nlm.nih.gov. kau+6d85SKXLsePuSG6kSkKPaiY59FXW4aXSQn+r1QxsSy5Blj2VZc4b wbPN0kMV3SdgQTpeEsi8PymsxTrfU35PXCbtN4IvIuNGKsLf2xW1YmND SZPl4Yxu3r/PWcwa37p/5MFykKXNBZ0chYuiYjXXaPUT/paRA+BL4V2D P7nkR/knc1vaKe3Ku284fltzMlSYYHA04yZ+Qazpvg49g8eKKG6hQ2A7 J6XcD3lrAqfoBkZLfrjVUorWLkwRcNwbcrNBw2D2rpGsThGopS+4fkol BSbeCjxSrL4QLgiGF+//TwoBolp6NDQZKQp3gSOFNo9p13AOt/I+bAnF B/vbdA==
AAAA 8 5 86400 20260818081036 20260724080151 16545 ncbi.nlm.nih.gov. rIdmw/89U7/gjydGPtqxoFn7d+Im2H2BeKchdkC978yQ9BhU+8HMIIsC 3lqKYyvOhOYhozRijRObGMUB01b2xv6Y5QRZAi84iJnhIGqI6dlxJ7BE eyMwSgiG6FhtAvXOv33wSPiWMjojfW6CH5aHelaQqj7lPh/6oau2C9Vj RkUFb/nWU4ipK05uzoEBJ5Q4VuCEv0jZ6WE0yRLwCqgsZjwWc/Sf33Ed 2Qy3evxBj7KLVKS3YdoKaUtPjYNsM6IWnLGbq+vnY3JNCzAafl/GXwSc 35JRxrP5yjmeif1owYC9OomcpYliSacHzKyATTPqwKj8NuH1EXCLNbzg On5KoQ==

NSEC

0 record(s)
—

Not configured

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Not configured
—

Not configured

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
PubMed
Description
PubMed® comprises more than 40 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.
Final URL
https://pubmed.ncbi.nlm.nih.gov/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://pubmed.ncbi.nlm.nih.gov/
Version
3
Server
nginx
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
GoDaddy.com, Inc.
CN
pubmed.ncbi.nlm.nih.gov
Valid from
2026-03-12T09:06:40-05:00
Valid until
2026-09-26T09:06:40-05:00
Days remaining
48
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

5 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
—
Permissions PolicyNot detected
✓
Cross-Origin-Opener-PolicyImplemented
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
34.107.134.59
31,90 ms
Cloudflare
1.1.1.1
34.107.134.59
18,89 ms
Quad9
9.9.9.9
34.107.134.59
23,78 ms
OpenDNS
208.67.222.222
34.107.134.59
26,51 ms
AdGuard
94.140.14.14
34.107.134.59
51,76 ms

IP, geolocation and ASNAssociated network information

34.107.134.59

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

pubmed.ncbi.nlm.nih.gov

Port 25: Closed/unreachable - 0.9 ms - 
Port 465: Closed/unreachable - 4049.9 ms - 
Port 587: Closed/unreachable - 4052.5 ms -

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