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Total

DNS

Email

Security

Network

100

Availability

Domainul.pt

IPv41

IPv60

MX records4

StatusActive

Domain technical report

Universidade de Lisboa

ul.pt

A maior universidade portuguesa e uma das maiores da Europa. No coração da cidade de Lisboa, oferecemos uma das melhores e mais diversificadas ofertas formativas e prometemos ser uma experiência única e enriquecedora.

Generated: 2026-08-10T12:27:16-05:00 · Cached result

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IPv41

IPv60

MX4

NS2

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

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 policy5 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 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 certificate55 / 55 pts · Security

180 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/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)

194.117.3.27

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

4 record(s)

50 mx22.ulisboa.pt.
50 mx21.ulisboa.pt.
50 mx24.ulisboa.pt.
50 mx23.ulisboa.pt.

TXT

5 record(s)

"HARICA-roto0VjF4dd3aU6YbKg"
"Universidade de Lisboa"
"MS=ms53031760"
"v=spf1 mx a:mx21.ulisboa.pt a:mx22.ulisboa.pt a:mx23.ulisboa.pt a:mx24.ulisboa.pt a:ul-listsrv05.ul.pt ip4:194.117.2.9 ip4:194.117.3.12 -all"
"google-site-verification=_41KiqxMo5DDhiQX6_-N97l0_xfhffodhVoyi4MW8zk"

NS

2 record(s)

a.ul.pt.
b.ul.pt.

SOA

1 record(s)

a.ul.pt. sistemas.reitoria.ulisboa.pt. 2026041315 7200 3600 1728000 14400

CAA

3 record(s)

0 issue "letsencrypt.org"
0 iodef "mailto:sistemas.di@reitoria.ulisboa.pt"
0 issue "harica.gr"

DS

1 record(s)

63706 5 2 24F08E53694E5C4F18CBD6DD03061F6D05B581E547CE15300257411A C71D3787

DNSKEY

2 record(s)

257 3 5 AwEAAd5Oq1P9YObiGVGLPY0iusLOrEnEwigV6JYT/Fwt32fJT6J/YrIK qibwdz1trhDaAXGPC5ikNmSm9U5dWw8VCmnSSbF9yAzjkPf8xc0HAX2u oIvHbMVPtZoVMBgOCTE9ESO01rZswets6MUXpTLJs5LFXH6Gz3RSb0H4 Y6KgzRMqjLqIGj9Tjtt+LxWro4iwmUsA2rJSjyDQ30nzmyPePWXEhlyK gczoItwGvWQNQwVwG1+eeleRSbUeSDhcSxVfYKEe0qFb2CpF2R60+5jO z9Lt5QAZK5zg4ylynNWJ0Ch6ngddEROtrGnLjoHhI1vmqBkaTrmZ6wLh FVjQOqW7uLE=
256 3 5 AwEAAcOjAWvYgocu9ElH8h4oZHRuc2F80qwyjeQkfWA/fTCDHguUMQ/B gtvgkQv7pZHKKeOATuM+oeBYJaKWpwA4YkiqeL7EZgFQy9w37Jm+90FH WcHDFwSmsSxYhgAKssR2cDnHoiNiHWcyvI9novQ2C1PEqUurUD1K7oVV k3J//aJP

RRSIG

6 record(s)

DNSKEY 5 2 300 20260909010001 20260810010001 36786 ul.pt. ub871VnbVVkfJHrEkcebktjF9gKLL1uGM3TghGImUL9TdDE2f1EKvxy7 /RdTTnH++9V7aDFLjpulTGqTxzC3r2UJoCi5S1mxdDGVNGdlx5aH8yDg HKt2IVRITIEzb1cIyeDV9Wme8HEBQfitqQd2UB5nwRaEvOGnwrpkGuil X9Q=
DNSKEY 5 2 300 20260909010001 20260810010001 63706 ul.pt. Tmv7QxeZn7iKI2LEoztLkX1J85iK7iJ/ydTpfh7I+mbFUznonnLARxln y6VF+va67OaLQA5AqW3pU8+EOMSzHeR92e7DeUxteyrrcZIPntcamJvZ QHsYwqCb1U2jMv30nmNnVCHaS8Z9uHN//dkgACBSpc6Np2ZtLL0WjMI5 H+GeihCR3fKyfIxpOIvO1e6NICFEl+kit2+ai1gJA1cwTplyvspdJc+x Bo7z2JFFTZT5WfmxlAo3+78wlC3mxu7+eu2Oeu47zX74KG3b0HkRtYCb Zfuwec0jXLD2Zp0dkbTXEyFT4RVFdKji6aKZpynY2vFWwnQO1lZaiyPe Qxa7yA==
NS 5 2 300 20260909010001 20260810010001 36786 ul.pt. pNBgmm+PEEOUlPGlBwAPidmwNmcfwsFp6UUPOmeTf17ShdEcnYQ8tMyW eq8cOkJT/TaQWsm6fZ+gjXjdBZa7WNkJbdVQn6mkn+s+i3+5kItor+Cc FrhhwN25G4QKSRoPA31lTcteCeAX1vFVujUM/jAIpgyjkl52viJ93Twg 04g=
TXT 5 2 300 20260909010001 20260810010001 36786 ul.pt. McoIVb0xLEQUz2YGhlAo4zumQHtg8G42nnSVHxQLC2AuDQvhzjpoiv/A wP1+u8grtKMaoTE4SKXOnQis+nd/zvX4JVLEWiIROBj+pilaV3ALJ4xP 1413Trfj/1DDdky6F4ruXQSpQRiyyNLkDPlNaHQEcowi5R+KgP9/TEH4 8+I=
DS 13 2 7200 20260820162022 20260810162022 30640 pt. 476ixpOHGetA8GCVOFMiIGc3AKO6cA+2Wo6rs8GeFofmF7BUg9W4vIJ/ C38fTcLD8RszxJ7hDTSjhVXl1XAMPw==
CAA 5 2 300 20260909010001 20260810010001 36786 ul.pt. n2uc9zE8EtmEFd3T+HklJ/hjlmrR1mu/iQLhXvtjQDMbsJ/iRJOvmCsl lcr9dxbdweosmBtSD2ah+w1VEVlHXBCafkQcPHsUCOvXNyQwF5r76Rhh PfYKNJkh/2XcGMF7pp4x/aoz6OPK9yZxeXZ+1PYLncrzfCH1QAih34pB cK0=

NSEC

1 record(s)

_456ef0275a36bc9c8bc9ee0b9bd2dc17.ul.pt. A NS SOA MX TXT NAPTR RRSIG NSEC DNSKEY CAA

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

1 record(s)

100 10 "S" "x-eduroam:radius.tls" "" _radsec._tcp.ulisboa.pt.

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 mx a:mx21.ulisboa.pt a:mx22.ulisboa.pt a:mx23.ulisboa.pt a:mx24.ulisboa.pt a:ul-listsrv05.ul.pt ip4:194.117.2.9 ip4:194.117.3.12 -all

DMARC

Not configured

—

Not configured

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Universidade de Lisboa

Description

Final URL

https://www.ulisboa.pt/

HTTP status

200

HTTP

Status

HTTP/1.1 200 OK

Final URL

https://www.ulisboa.pt/

Version

Server

Apache

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Hellenic Academic and Research Institutions CA

ul.pt

Valid from

2026-07-23T05:00:09-05:00

Valid until

2027-02-07T04:00:08-06:00

Days remaining

180

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES128-GCM-SHA256

Security headers

1 active

—

HSTSNot detected

—

Content Security PolicyNot detected

✓

X-Content-Type-OptionsImplemented

—

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

194.117.3.27

275,73 ms

Cloudflare

1.1.1.1

194.117.3.27

260,23 ms

Quad9

9.9.9.9

194.117.3.27

190,70 ms

OpenDNS

208.67.222.222

194.117.3.27

356,20 ms

AdGuard

94.140.14.14

194.117.3.27

255,56 ms

IP, geolocation and ASNAssociated network information

194.117.3.27

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

mx22.ulisboa.pt

Port 25: Closed/unreachable - 113.2 ms - 
Port 465: Closed/unreachable - 111.5 ms - 
Port 587: Closed/unreachable - 111.1 ms - 220 mx22.ulisboa.pt ESMTP

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