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Total

DNS

Email

Security

Network

100

Availability

Domainbiolinky.co

IPv41

IPv60

MX records1

StatusActive

Domain technical report

Info

biolinky.co

Biolinky is a free link-in-bio tool, used by over 350K people worldwide.

Generated: 2026-08-11T04:18:56-05:00 · Cached result

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IPv41

IPv60

MX1

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 chain15 / 15 pts · Dns

DS and DNSKEY detected.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

DNS propagation0 / 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

40 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers4 / 35 pts · Security

1 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

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/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

76.76.21.21

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

1 SMTP.GOOGLE.COM.

TXT

9 record(s)

"admitad-verification: 5032812c6b"
"admitad-verification: 88259cfd6b"
"brevo-code:d9e05d421689d7d8056e3b781ec3e044"
"v=spf1 include:servers.mcsv.net ?all"
"v=spf1 ip4:145.131.30.134 ~all"
"google-site-verification=1--XOrpUOprDVAkaqgNQhN8NRs28jqrkUVzXXkim0Zk"
"google-site-verification=cuLEaF9LvlZlkFUfYKgzHtCfQ28H2RMlpG-L0ocJtpo"
"facebook-domain-verification=sf2adw6pl4xd0wp9xpff8zg32hamj6"
"v=spf1 include:_spf.transip.email ~all"

NS

3 record(s)

ns0.transip.net.
ns2.transip.eu.
ns1.transip.nl.

SOA

1 record(s)

ns0.transip.net. hostmaster.transip.nl. 2026071000 86400 1800 2419200 300

CAA

0 record(s)

—

Not configured

DS

1 record(s)

26359 13 2 003CA10690A0291DFA994D4C7C175FA4D459C3CF210CEB23F9474958 8E1ADAF0

DNSKEY

2 record(s)

257 3 13 jN3dYEkfjDsGSAA9SM9X3jKmBTMFqaEA2Ntk5ROS+dnY9/BU1vadFddi S6ldHyryZ7s/smbqCXYIgrAvOWFgFQ==
256 3 13 k2LUlZZCvVqTkzvYRFRiCrpAlGpOCZjds8Huz4Ow5uu9EPxxQZa8RBnV rf8MdPnTEk6q4b5NaL3gigqUQ0x9aA==

RRSIG

4 record(s)

TXT 13 2 300 20260820000000 20260730000000 36278 biolinky.co. wbDpNJDGDymPee4XSvQJBfVGB9RA57yvXf+2tE0Kx6RFeivTMRhuCA8J WIJtCICEKrEj5K6M9sEe/YPmYEtHWQ==
A 13 2 300 20260820000000 20260730000000 36278 biolinky.co. +eb103OT/uHzECPYr3iV6oP3FLbVBhk7Adj+HLqsFu8J3YoUotlviT7f TYNbncmjbW/Bc++DThrRjTVjYaeC4w==
DS 8 2 3600 20260822124149 20260723111149 16855 co. S36vEPKUs/QCCpePbdmhriacsnSeEXj5gyCWs6R2YjJwaEo1vZRDUaGw qDydHyDNhsJY9uqEnG07OvCoy9P+Z59RM1aQnetnTctGi5zA8hSA1XqJ 7qEkxk6x5YD3bARvUjn4FZZU/I6rSAEMgM6yTAoInqVtgh2bXYeZ8gr3 XvRjHM+WuipkqbQvYCPwAkIOEiiW00mI9oz90a6ylkfiMQ==
NS 13 2 86400 20260820000000 20260730000000 36278 biolinky.co. VhBD8GkawZ+qJTvOx2sCLDsb9XTVM5+cNr6F6eilXChRtukkq2Meeb9q tX0CA2T8wviVks8Zl9KmO+0CwtHhiQ==

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

Configured

v=spf1 include:servers.mcsv.net ?all

DMARC

Configured

v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

DKIM

Selector mail

k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z+FApQ6ra2VsXfbJP3HE6wAO0YTVEJt1TmeczhEd2Jiz/fcabIISgXEdSpTYJhb0ct0VJRxcg4c8c7wIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Info

Description

Biolinky is a free link-in-bio tool, used by over 350K people worldwide.

Final URL

https://biolinky.co/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://biolinky.co/

Version

Server

Vercel

X-Powered-By

Next.js

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

biolinky.co

Valid from

2026-06-23T02:18:44-05:00

Valid until

2026-09-21T02:18:43-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

1 active

✓

HSTSImplemented

—

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

Review

Differences detected

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

76.76.21.21

239,50 ms

Cloudflare

1.1.1.1

76.76.21.21

271,74 ms

Quad9

9.9.9.9

76.76.21.21

250,08 ms

OpenDNS

208.67.222.222

146.112.61.108

52,40 ms

AdGuard

94.140.14.14

76.76.21.21

245,84 ms

IP, geolocation and ASNAssociated network information

76.76.21.21

Identified

success

Yes

country

United States

country_code

region

California

city

Los Angeles

latitude

34.0536909

longitude

-118.2427659

asn

16509

organization

Vercel, Inc

isp

Amazon.com, Inc.

timezone

America/Los_Angeles

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

SMTP.GOOGLE.COM

Port 25: Closed/unreachable - 44.2 ms - 220 mx.google.com ESMTP 586e51a60fabf-45e1dc794a1si849457fac.354 - gsmtp
Port 465: Closed/unreachable - 4043.2 ms - 
Port 587: Closed/unreachable - 4021.3 ms -

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