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93
Total
100
DNS
90
Email
84
Security
85
Network
100
Availability
Domainup.pt
IPv41
IPv61
MX records6
StatusActive
Domain technical report

Universidade do Porto

up.pt

A Universidade do Porto é uma das melhores instituições de ensino público da Europa. É reconhecida pela qualidade da formação e investigação, nas áreas da ciência, engenharia, saúde, artes e muito mais.

Generated: 2026-08-09T03:03:36-05:00 · Cached result

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IPv41
IPv61
MX6
NS5

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

5 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

6 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

102 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: www.up.pt

i
IPv4 diversity20 / 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

1 record(s)
193.137.55.13

AAAA

1 record(s)
2001:690:2200:a10::13

CNAME

0 record(s)
—

Not configured

MX

6 record(s)
10 mx03.up.pt.
10 mx06.up.pt.
10 mx04.up.pt.
10 mx02.up.pt.
10 mx01.up.pt.
10 mx05.up.pt.

TXT

7 record(s)
"google-site-verification=7hF_ZD6DOKHK8MLopRWBZvby2A0gBGVQi-kvLqdkxGo"
"google-site-verification=eMy_WDqKW1lght0VDzrPfEFh0osBa3BtcILLuMxX5jI"
"OIIBdX0Cy1Ay7dAnhFQmuuqdTwtlthv23weewGfmKBDcfrmo2WOrjGfPx8ZFpan5QNfIvto7Jp/S5Do/UpSghA=="
"adobe-idp-site-verification=491feeefc019f19c6030bf87ace8477470d9a78bb3e660161ad02c3b3dbfe51e"
"v=spf1 mx include:spf4.up.pt include:spf6.up.pt include:spf.protection.outlook.com -all"
"MS=ms16675765"
"HARICA-odgH2dLCMNQenduoC39"

NS

5 record(s)
ns3.up.pt.
ns4.up.pt.
ns1.up.pt.
ns2.up.pt.
ns02.fccn.pt.

SOA

1 record(s)
ns1.up.pt. it.up.pt. 1786262251 28800 7200 2419200 86400

CAA

4 record(s)
0 iodef "mailto:incidente.seguranca@uporto.pt"
0 issue "letsencrypt.org"
0 issue "pki.goog"
0 issue "harica.gr"

DS

1 record(s)
37518 8 2 D587329EA5CDC5C0FE695E22B4692A010DEC28E6353EC8CF90D5739F 4F64F35B

DNSKEY

3 record(s)
256 3 8 AwEAAbNsHXe/0L/fCh48qSEGrAXCYJx3xP24EHi5khNK/Vm0+du+nLKf J+DgIM5jAPAp5BgS0SkpjSJJxWNu4hCLBw3wBHMEyIaUR7VvdJKGiUk1 96lbe3UrCzsPOmk6j0oSEiO96r9UXOg2ebXTWFyFY7z3kLNVLrVzkMLY UtlgsLr9
256 3 8 AwEAAa8Foi/xiLFQFn7EJquRUraiN5Es/ScH9pmep6t+rX8zTYfG8tQL sxMGtqAgegCARantO7pJi4TX500SJxCOQ8Xb4qwPDMyRCDW7JNHi5gV2 BCZCDemCXYYflHSlhkCGwGN//ZJTYXabgdb7bdooAVBsx+QJcFM1GmmJ mgX59NlyQB+eyWCWT2WbQ5/8QMbh+Q95IfejSUAYEn8ZCRhkaSzRiCMG 2g1Qn5glUwfeqrwbEJOgG0U0vZ/iLvwrJoi2nkX9+Eg7kaJJmPQrjVgG be6B/PHNaxpYI7/a+4Ohxy7CRFtxERd30q9Zc8x1/hGUuSKttc6pDNM0 ezsqWqE=
256 3 8 AwEAAezNAW2yQcSowVsRygB3+FtVDjyOugvYdYEMa8v2O3QtDW+drPWu lo/LzqOW+juiXxFJBK5VXQLzmbBZ83f3BTGV6kR5DwsRcUK1lsTkoO0L PGqAaVA/dEYWqc3o0eT6kAsynUIs0fO03UveZELBrooi9l1IMrbkxsSQ r6W2WRk3

RRSIG

7 record(s)
TXT 8 2 300 20260820143110 20260809024251 37518 up.pt. mFlIPIGpE0ic+6OFv9Zt7Rz6+ZRYWUUtipEt+qlwwo2WHu2V7u3fbRu1 m/VkIwBzrPmv9oXXBSXmwskTOPtikjmVPCF0MIY7/rDH/H5sH/Ki30qC CMX5417BN4ciDHPhHkB8QKLHIRRkuVmx5ie3exGh+8m7oWUpfHwYU/4G VjEs388EyJbFp/+oC6GNPXUX+5DGPUaiq69fH2thM+vyt8XEcvyQp8DV QQ/1WqR7FfcKv2jW+3Hw9dNDZK09A8doUn2u26HO4qPnGca5aYj1PYe3 +L/G9kSPMtrZBE2XLRXhQ+Kh2Fv3JZToVWJ/fhFHVd5YykeUigc0xyA5 bw==
TXT 8 2 300 20260829071132 20260809024302 65496 up.pt. 11EXAzb976fXFzEny2yHbITR5fEs65AOfJdPYdgiGAWPs5bohO4wDH6s nWtN/WtFgransthva59S/ZjgEEqkm1yknUQkTTiU2iYXDja6gAvIxNtb NlHqQxWm2k3vQdz7tAY8o6SHMJzz9WLQMFqG+ZdYNzW42OIp9oiUREZo E3E=
AAAA 8 2 3600 20260818020339 20260809024234 37518 up.pt. kMSelUrToLynku1iTSMdsflZiXgk2vnt2aE+zHYo4sJS88ozMzWfhEWn ABy0e9lsshlR4/3yqcW5xZlaHVvfgjnLJizt/traTq6KlbbTz08Ms4/V iV8GVHjW37tPB6Ehcroi2bMcSC5T95HWqvzW9hs7QlTncmmEBtC1YFF0 jjfwPXQB91UkKRzmAwe5ik5JvGu6AEeS9dl0L6W1UT7AfcRVyQrHYzlE +HW/arcc0AkZ/lC1HHWX46z6JS5B50guo6x/lBUgbUwDmWPWFM4w5D2V iTsd1Kw62Y5RJolUer1T/q4WblBViEiTF+0bE0noouqQBCc/f/Ly2G4v rQ==
AAAA 8 2 3600 20260820082247 20260809024244 65496 up.pt. Jaw8qT9+i2+ymy0eUw3w5qpAxVap+xZSfOPqVIsccd+TjPvgfguki4T7 SjBDtBxkLQdrpeoWEM/5YmsIPnoj8r/tsUK+JTmr8qsWh28S0sOedf7G 8lsOcg/I64tE/AQ9flMcQQvf35NYYI5g+yfYvQTE9HO5rT+dnyfK7gy3 HdA=
DS 13 2 7200 20260819052021 20260809052021 30640 pt. EqbY9r6gFawaUhrKPyXsnVKlrk4R830KXM3naa/hASzkKNVH+X1Zg23g Ne9YEWGsNQezB3VPAC8pdr6ufL4l2Q==
NS 8 2 86400 20260820143110 20260809024251 37518 up.pt. Nl3FGSZSD70pfZkKwdWWbN4ZsXmZZBim706S7kF9R9Ram80bn6OY7/c9 /uhCCgMu2YKs3I1+lJEm8pvrLSbXznm1nSTNEk3Q01WNWEe1lmvy9sma ajn6xjefFEW2/frSY1vxQA9EtRbqHIWIKzW3pQZQ3mICXtpnGfGMWIR8 p4ogg41WULC+PtZ4YPuIMCdqtHpj6nijknBhsmaGkWKgyxawtrkdzwx3 SMrV0kiz3f04HQ66DCFOnE6P0zU9/jhKaxsPZQYbDehodWatfZG1DgrR pgv9Sb1R6IYFxxhP73i+zh8EVjEa/WB8ud8jwq5Iv2jNwdLRSo/DRtwf 2Q==
NS 8 2 86400 20260829071132 20260809024302 65496 up.pt. nVml/dizk+Zpn0MBQIywDJEYSK3EW2086i1cPWQ/C9JFVNMMQQWupvuB /FWAbx7t8cMujxYjQqxOc9gvqbEyoPe3sjSb5nn2++YxSdJsLWPJfx8E d83D+RFZ5IPNhaSqoNp9i8gpkynn1NoSpOH4r4HVOY+7QXY9LsU5ixsC 8SY=

NSEC

1 record(s)
_acme-challenge.up.pt. A NS SOA MX TXT AAAA NAPTR RRSIG NSEC DNSKEY CAA TYPE65534

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

3 record(s)
2 10 "S" "SIP+D2U" "" _sip._udp.up.pt.
1 10 "S" "SIP+D2T" "" _sip._tcp.up.pt.
0 10 "S" "SIPS+D2T" "" _sips._tcp.up.pt.

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 mx include:spf4.up.pt include:spf6.up.pt include:spf.protection.outlook.com -all

DMARC

Configured
v=DMARC1; p=none; rua=mailto:dmarc@up.pt; ruf=mailto:abuse@up.pt; pct=100; ri=86400; adkim=r; fo=1; aspf=r

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw4p1owQQJhrUp+sypP6YpTkyZF5GPf6o3IorW8eC+droAxY56KO6Ua1kUuenXO0SchOuoGBd4BHWVeIGLYqOq8ArYmbBZkRokSIvdwoUUkQViNw71eAx2H5hM/q1T6c5QiwY26MVZ1/IFoMKN4SEjmlx8qGc+3vVjhrtA8xRXpTls0eLTV6b4p/TQ1ZYTxoOnbdp0cThcB60PHJaLSfh5YV9INM9FIlS4ZwpPd8Y6wAc+Fb8z2Cj64KYFMCJiWOBv6dAqjvgAr6C6rvuDNTcky+RBLT+DhxcUEq4Gh3LVlC3I0plqP78+2cPl0SjNXiSjihZDDhv5ze7DReqyK72fQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Universidade do Porto
Description
A Universidade do Porto é uma das melhores instituições de ensino público da Europa. É reconhecida pela qualidade da formação e investigação, nas áreas da ciência, engenharia, saúde, artes e muito mais.
Final URL
https://www.up.pt/portal/pt/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://www.up.pt/portal/pt/
Version
3
Server
cloudflare
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Hellenic Academic and Research Institutions CA
CN
up.pt
Valid from
2025-11-20T00:34:01-06:00
Valid until
2026-11-20T00:34:01-06:00
Days remaining
102
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

5 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
—
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
193.137.55.13
41,03 ms
Cloudflare
1.1.1.1
193.137.55.13
149,53 ms
Quad9
9.9.9.9
193.137.55.13
152,45 ms
OpenDNS
208.67.222.222
193.137.55.13
1.174,61 ms
AdGuard
94.140.14.14
193.137.55.13
174,24 ms

IP, geolocation and ASNAssociated network information

193.137.55.13

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

mx03.up.pt

Port 25: Closed/unreachable - 116.2 ms - 
Port 465: Closed/unreachable - 4137.3 ms - 
Port 587: Closed/unreachable - 4021.2 ms -

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