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Total

DNS

Email

Security

Network

Availability

Domainutl.pt

IPv40

IPv60

MX records4

StatusActive

Domain technical report

utl.pt

Generated: 2026-08-10T10:56:11-05:00 · Cached result

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IPv40

IPv60

MX4

NS4

DiagnosticsMain findings and recommendations

IPv4 (A)0 / 30 pts · Dns

0 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

4 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

4 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

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 certificate0 / 55 pts · Security

No valid certificate was retrieved.

Certificate lifetime0 / 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 diversity0 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

DNS resolution0 / 40 pts · Availability

At least one address family must resolve.

HTTP response0 / 40 pts · Availability

No successful HTTP response.

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

0 record(s)

—

Not configured

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

4 record(s)

150 mx24.ulisboa.pt.
150 mx23.ulisboa.pt.
150 mx22.ulisboa.pt.
150 mx21.ulisboa.pt.

TXT

4 record(s)

"HARICA-GWohQgu5VIsjbaqWjeN"
"v=spf1 a:mx21.ulisboa.pt a:mx22.ulisboa.pt a:mx23.ulisboa.pt a:mx24.ulisboa.pt include:ulisboa.pt a ip4:193.137.196.67 ip6:2001:690:a00:1036::67 -all"
"Antiga UTL"
"Universidade de Lisboa"

NS

4 record(s)

ns1.tecnico.ulisboa.pt.
b.ul.pt.
ns2.tecnico.ulisboa.pt.
a.ul.pt.

SOA

1 record(s)

a.ul.pt. sistemas.reitoria.ulisboa.pt. 2026031718 7200 1800 604800 3600

CAA

0 record(s)

—

Not configured

DS

2 record(s)

31071 10 2 E721525A75A5E2EB178A0AA670D05283523371C68991C38E3A7776F2 663E1215
31071 10 1 A76FCA6B6D0AF304FE0A41D6555597C9F85F0384

DNSKEY

2 record(s)

256 3 10 AwEAAcNxKNU5QkbJnF5oFaIAMw7kOoPZ51DATB1CzkL8KCD2fZ6Cz0X6 OJOIo5Cp62ciTwVAchTmifnldLT4Cyxbj0MvyMWD4atWpY30qpZOoN98 NfxEyio1F3hCIi0h5JXa7rrGvn9XfFidfJ7q+ugwUH+K7EIRRiFpDTIg aclsmWACyAIck1CaVP47gqzFR5sS20kVooDPhp4yHOv8iy9rkGDUEmfk touprB0N4IfH85PlybM0IhNgo5mUkjST/EiGFyyRtuLVzgnzpMZj8E4Y QWBeZi2q1ney0dBgxBdon1StJeRnIporKIlAuOTP8oi1di8zjGBcgSfE 7SWf76UaIO8=
257 3 10 AwEAAaFResGr60tRJCRVLa06mBHGi9iF3+jZbbGIs4xNsDJd62cve3yy D3rpi/OK6aRWOBNyGNHYlMvGAqDFkriwVPqVyNeGp+IcccFBOrYg1kd2 HwgbssvXFKmcd60II8hGj81aaf+mVhtzGU+pItH1m5WLzkdXyXiB/D4w vTg24PIIKkD+1yxFn7HD68edcm+a/VB3/YcZbwWNm6F2BJPx9sKb3q7K CfCBU/AwF9A1V3ld1k95q7uEcqdiXf5RmGIgkk3LvIlNear7x3OisZr+ 7Nq4V2kRqMhTDphmeJ2Km8/tLEl8Kou+y9wn8+qXSWSzuQOKwnPFKWxP SrfpPhahSNN8ZOfw4SDN/sj99RpEpMLJPx9bagH/rfa5Awkm0N+rj38V Rv8E8IdGsdzBe17Dxl04WZxKbGlYvdIe4nHnPqy/3rx4CC2zhSWufEor Yl2pA53wqfBgpTjXw5okqsDeWbn1H8oeLfYMlIiTRkUgzO/IDYdyCj5P PZNDuyhCc9oanDa0T6FV4dLMZfEaNWSUx9dAhx2kfLiZaypsojN23uOc XY5AZzc0Qi4rYVUwD3YeMObgnKqSkyja67pxyecEGB1AllGEcT8MMed1 8t0iM9MgkYCAV+Qhm9NX/cbMOFOeSY7zCavjkczHaO3fNvoE0LbQcmQA mrpKJbXVuTVsklPB

RRSIG

2 record(s)

NS 10 2 3600 20260907010201 20260808010201 8555 utl.pt. jH1XbiisBVT6zJmUx0ZQ05ppvlFK9b8EP9VMFpb0Jk+rPS+dAFfkgwMs C2pz9zmqAJ92W5L5H6HrD5/WNKKm4+101s1U/HRzKJAiNoVNr/bX6nMr QjUiIfj/29h6WIVymOBVxBxOHFF7miy+v/G/InCvffzykH5o3lh71+CI TqWPVbqhTDZgz9MDp3E7tRSLL4w9filwc5H0eOKtZ5K8kbcm68HdNGpy cJKUdwKjvI+EjVU/tPlLzqd/5AdwVVSRs/k2cORRnrzQYSODeJDf1he/ vUaxNdqwHvc6Gh2klz9vvZ8z9WkKhkFTfvatR0Uz4ATZHCY8qZtr6ewp 68rvmQ==
DS 13 2 7200 20260820132023 20260810132023 30640 pt. VAWIECkM7Oth/zm1fHaq6YW1dQrkPk/+++RU0SzwmCQWtpIcnTl7672M 6K56N54o524dPbnBGlYi2KqylLOAQA==

NSEC

1 record(s)

_7e2aa765736bd2a68a649fa0f310693d.utl.pt. NS SOA MX TXT RRSIG NSEC DNSKEY

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 a:mx21.ulisboa.pt a:mx22.ulisboa.pt a:mx23.ulisboa.pt a:mx24.ulisboa.pt include:ulisboa.pt a ip4:193.137.196.67 ip6:2001:690:a00:1036::67 -all

DMARC

Not configured

—

Not configured

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

No data

Title

Description

Final URL

https://utl.pt/

HTTP status

HTTP

Status

Final URL

https://utl.pt/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Unavailable

Available

Issuer

Valid from

Valid until

Days remaining

Protocol

Cipher

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

Review

Differences detected

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

1.500,72 ms

Cloudflare

1.1.1.1

651,29 ms

Quad9

9.9.9.9

2.081,02 ms

OpenDNS

208.67.222.222

124,87 ms

AdGuard

94.140.14.14

145,74 ms

IP, geolocation and ASNAssociated network information

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

mx24.ulisboa.pt

Port 25: Closed/unreachable - 1.8 ms - 
Port 465: Closed/unreachable - 111.7 ms - 
Port 587: Closed/unreachable - 111.6 ms - 220 mx24.ulisboa.pt ESMTP

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