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Total

DNS

Email

Security

Network

100

Availability

Domainissn.org

IPv41

IPv60

MX records3

StatusActive

Domain technical report

ISSN |

issn.org

Generated: 2026-08-09T08:14:58-05:00 · Cached result

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IPv41

IPv60

MX3

NS3

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

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

✓

SOA record10 / 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 records20 / 20 pts · Mail

3 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

187 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 DNS30 / 30 pts · Network

PTR: issn-web2.customy.net

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/1.1 200 OK

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

46.105.152.159

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

3 record(s)

1 issn.in.tmes.trendmicro.eu.
50 webmail2.issn.org.
25 webmail.issn.org.

TXT

5 record(s)

"linkedin-site-verification=f157ae1d-ae36-4340-a826-b830779d2154"
"brevo-code:ec006b10d9a79dc5a40dc5230a34a1e8"
"v=spf1 mx a include:spf.mailjet.com include:spf.tmes.trendmicro.com include:_mailcust.gandi.net ip4:87.98.132.107/32 ip4:78.202.116.207/32 ip4:90.63.2" "23.175/32  ip4:150.70.0.0/16 ip4:193.55.152.252/32 ip4:193.55.152.253/32 ip4:95.142.164.141/32 ip6:2001:4b98:dc0:51:216:3eff:fe35:c7e1/128 ip4:54.37.1" "11.24/32 ip4:141.94.63.216/32 ip4:151.80.6.248/32 include:spf.brevo.com -all"
"3mpCBUyrWsqIEvHygKMl3vH9g5lBVQ4hHXidA4IhHMM="
"tmes=d472f81e82e603e4c2989a1c9fe1e86a"

NS

3 record(s)

ns-117-a.gandi.net.
ns-21-c.gandi.net.
ns-36-b.gandi.net.

SOA

1 record(s)

ns1.gandi.net. hostmaster.gandi.net. 1785974400 10800 3600 604800 10800

SPF

Configured

v=spf1 mx a include:spf.mailjet.com include:spf.tmes.trendmicro.com include:_mailcust.gandi.net ip4:87.98.132.107/32 ip4:78.202.116.207/32 ip4:90.63.223.175/32  ip4:150.70.0.0/16 ip4:193.55.152.252/32 ip4:193.55.152.253/32 ip4:95.142.164.141/32 ip6:2001:4b98:dc0:51:216:3eff:fe35:c7e1/128 ip4:54.37.111.24/32 ip4:141.94.63.216/32 ip4:151.80.6.248/32 include:spf.brevo.com -all

DMARC

Configured

v=DMARC1; p=none;

DKIM

Selector mail

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAl14BMTd2Xwz2j+ynqfvDeJWiC+yTs+1WmuXVdFVTiP85Mm6+mmSwbf4KXNWevDa1etzLZbsTxpTtKBnNeop+3RMS4bwXcMT178JxYes5VNJMM/k5t4xYEC1FMdPw46as7KToHAET+0wY7cTon3HwcHf+nayoDf+JoE0gWZLcMyXhDc4k8vX9G0Rx7NVP9fUp5hTmkEUemVLQsDfAhOUgelUzK5A87fi1u9gqEYTBukR8uDfFJ9Jp3exsogjR/9eOMLVp/WJNUkqBVbszITowM6Ug6V6sKNsWRQa1ZYGJEplXHSFr5OMWWVwI5a4vYifHsH7mlGzJIuqNHcUsq4k/9QIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

ISSN |

Description

Final URL

https://www.issn.org/

HTTP status

200

HTTP

Status

HTTP/1.1 200 OK

Final URL

https://www.issn.org/

Version

Server

Apache/2.4.41 (Ubuntu)

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Gandi SAS

*.issn.org

Valid from

2026-02-07T18:00:00-06:00

Valid until

2027-02-12T17:59:59-06:00

Days remaining

187

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

46.105.152.159

263,84 ms

Cloudflare

1.1.1.1

46.105.152.159

232,45 ms

Quad9

9.9.9.9

46.105.152.159

197,73 ms

OpenDNS

208.67.222.222

46.105.152.159

142,23 ms

AdGuard

94.140.14.14

46.105.152.159

478,37 ms

IP, geolocation and ASNAssociated network information

46.105.152.159

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

issn.in.tmes.trendmicro.eu

Port 25: Closed/unreachable - 9 ms - 
Port 465: Closed/unreachable - 4039.2 ms - 
Port 587: Closed/unreachable - 4029 ms -

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