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85
Total
95
DNS
90
Email
65
Security
70
Network
100
Availability
Domainretractionwatch.com
IPv43
IPv63
MX records1
StatusActive
Domain technical report

Retraction Watch – Tracking retractions as a window into the scientific process

retractionwatch.com

Tracking retractions as a window into the scientific process

Generated: 2026-08-10T14:37:50-05:00 · Cached result

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IPv43
IPv63
MX1
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

3 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

3 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

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

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

✓
DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

1 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

83 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

!
HTTP security headers0 / 35 pts · Security

0 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓
IPv4 diversity35 / 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

3 record(s)
104.26.2.138
104.26.3.138
172.67.69.152

AAAA

3 record(s)
2606:4700:20::681a:38a
2606:4700:20::ac43:4598
2606:4700:20::681a:28a

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
1 smtp.google.com.

TXT

2 record(s)
"google-site-verification=SsbG8Lm8o7Lk2NHmZiJ3KPY4GJHIhnBfC3YXn3naUXw"
"v=spf1 include:_spf.google.com include:servers.mcsv.net -all"

NS

2 record(s)
fatima.ns.cloudflare.com.
ram.ns.cloudflare.com.

SOA

1 record(s)
fatima.ns.cloudflare.com. dns.cloudflare.com. 2411640490 10000 2400 604800 1800

CAA

0 record(s)
—

Not configured

DS

1 record(s)
2371 13 2 E9B4D91FD86736D7FD6A9DFAB2A50C79C038EBF89974CC2924BF6B9C 14CB9F88

DNSKEY

2 record(s)
257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==

RRSIG

6 record(s)
SOA 13 2 1800 20260811203741 20260809183741 34505 retractionwatch.com. MP3N/JWDa+CLNz/poKD3a6YKmzhoin8gx4H0EdUVL7ZnqEQ2NA2Uk13d m55S6cabNjmZfAcIdHeiV2manZv3ZQ==
MX 13 2 300 20260811203741 20260809183741 34505 retractionwatch.com. ZqP1epmuyZG6fMJJ7eyugvYn2blBVBDPxTwa9cuQmj12fgzlFq2SYMLD ntqQHwOMelLHzeHyY36ggsU7z1WxlA==
AAAA 13 2 300 20260811203741 20260809183741 34505 retractionwatch.com. 9FJXWm3j7xwwcnoJO+EtYR+O9oatPHcc+cpvAD8QG8prOlQ5pPLORUpo LK/reLfhLCle4/UudAgIkBxTxFs51w==
A 13 2 300 20260811203741 20260809183741 34505 retractionwatch.com. QYpkkEdXUHTBl0c9H8pzS5Xp8jfjEn0UoQMz8kdoV7NqCSGVSsQaWqmM YX1KGTyXX+pYRF5XQSKeTIOdJiCpFQ==
NS 13 2 86400 20260811192420 20260809172420 34505 retractionwatch.com. 2wVSc0y8qdPDdz6oksYfLZgc2VItgiN6J6yJ83Y19LEA/eVltenTHCHW sLKus2x82D/sPD5YTDvjtdaYwbxlqQ==
DS 13 2 86400 20260815022018 20260808011018 41446 com. H3GoTla/VK81RYB2pjE6F68QVapWy7riOcfQe4q3YWKnlgW/31i70tmV 6Wej6lwtp4bwQN6bYL+9QdneTpJlvw==

NSEC

1 record(s)
\000.retractionwatch.com. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA

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

Configured
v=spf1 include:_spf.google.com include:servers.mcsv.net -all

DMARC

Configured
v=DMARC1; p=none;

DKIM

Selector google
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA02bC3xQR27cQ+mdRQAkR0L8bhnDQfQAtejgpt2natq7VJyWXxZ0c52Pf1S278GhoAAEPRS0r0I+5IQtgKz/io4rRbNXcFRMPXTHiUOSgH3d2ExVgnJkIWNUnJnIesDwN3C4qLd8uw+Z2JGcbiGmkO06WR8W7MIHEN2nqwFitfg77tjqEYow9ekbYC/4FLdlUCB0ejn3oacRQRO1TH+7pdR7/AGENpzFzbJRCDivDjEqdVdqVG5RODmLgx9lUvWzlLpdb3fvuoDXhuc4ruPxV1GsdxR6oOIjlXUUnajECxS4DmszmYEnxQW/6cctGQd1j9thqjHCT/tA1lqIMkIQwgwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Retraction Watch – Tracking retractions as a window into the scientific process
Description
Tracking retractions as a window into the scientific process
Final URL
https://retractionwatch.com/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://retractionwatch.com/
Version
3
Server
cloudflare
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Google Trust Services
CN
retractionwatch.com
Valid from
2026-08-03T21:51:59-05:00
Valid until
2026-11-01T21:51:42-06:00
Days remaining
83
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

0 active
—
HSTSNot detected
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
—
X-Frame-OptionsNot detected
—
Referrer PolicyNot detected
—
Permissions PolicyNot detected
—
Cross-Origin-Opener-PolicyNot detected
—
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
104.26.2.138, 104.26.3.138, 172.67.69.152
65,70 ms
Cloudflare
1.1.1.1
104.26.2.138, 104.26.3.138, 172.67.69.152
55,04 ms
Quad9
9.9.9.9
104.26.2.138, 104.26.3.138, 172.67.69.152
54,08 ms
OpenDNS
208.67.222.222
104.26.2.138, 104.26.3.138, 172.67.69.152
60,73 ms
AdGuard
94.140.14.14
104.26.2.138, 104.26.3.138, 172.67.69.152
71,94 ms

IP, geolocation and ASNAssociated network information

104.26.2.138

No data
success
No
country
region
city
asn
organization
isp

104.26.3.138

No data
success
No
country
region
city
asn
organization
isp

172.67.69.152

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

smtp.google.com

Port 25: Closed/unreachable - 22 ms - 220 mx.google.com ESMTP 006d021491bc7-6b04aa4231dsi5100805eaf.34 - gsmtp
Port 465: Closed/unreachable - 4020.1 ms - 
Port 587: Closed/unreachable - 4041.2 ms -

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