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77
Total
70
DNS
70
Email
81
Security
50
Network
100
Availability
Domainuff.br
IPv41
IPv60
MX records1
StatusActive
Domain technical report

Universidade Federal Fluminense

uff.br

A Universidade Federal Fluminense (UFF) é referência nacional em diversas áreas do conhecimento e possui uma trajetória de crescimento, realizações e reconhecimento público.

Generated: 2026-08-09T21:38:14-05:00 · 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 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

1 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

!
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

56 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: www.uff.br

i
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)
200.20.0.21

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
1 smtp.google.com.

TXT

3 record(s)
"google-site-verification=jjGFW2iNtxZrIc1DSjgTEVtzON6Je2B2YgjKVRYVLUo"
"_globalsign-domain-verification=GUlYo-9I9IKGhhNMdAYA22to6LKKbMJhwtg1kJw7gf"
"v=spf1 -all"

NS

3 record(s)
guanabara.rederio.br.
marlin.telecom.uff.br.
server.uff.br.

SOA

1 record(s)
server.uff.br. postmaster.uff.br. 2026073100 3600 3600 1209600 3600

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

1 record(s)
NSEC 13 2 900 20260822144004 20260808134004 52637 br. fkHk+GDaXvOk6cTtCJnzbDRrVKkjl0BT/FOohC2XiGz66FsiNAQ3bvRI +EyMi6qJ8Y1kbtISPGuzBMLJRH5m2Q==

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 -all

DMARC

Configured
v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r; rua=mailto:postmaster@uff.br; pct=100

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Universidade Federal Fluminense
Description
A Universidade Federal Fluminense (UFF) é referência nacional em diversas áreas do conhecimento e possui uma trajetória de crescimento, realizações e reconhecimento público.
Final URL
https://www.uff.br/
HTTP status
200

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://www.uff.br/
Version
2
Server
Apache/2.4.52 (Ubuntu)
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
uff.br
Valid from
2026-07-07T14:53:49-05:00
Valid until
2026-10-05T14:53:48-05:00
Days remaining
56
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

4 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
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
200.20.0.21
61,88 ms
Cloudflare
1.1.1.1
200.20.0.21
42,06 ms
Quad9
9.9.9.9
200.20.0.21
208,37 ms
OpenDNS
208.67.222.222
200.20.0.21
635,08 ms
AdGuard
94.140.14.14
200.20.0.21
315,34 ms

IP, geolocation and ASNAssociated network information

200.20.0.21

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

smtp.google.com

Port 25: Closed/unreachable - 22.1 ms - 220 mx.google.com ESMTP 586e51a60fabf-45deee0b049si926188fac.274 - gsmtp
Port 465: Closed/unreachable - 4049.9 ms - 
Port 587: Closed/unreachable - 4044.3 ms -

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