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81
Total
70
DNS
100
Email
65
Security
65
Network
100
Availability
Domainusf.edu
IPv43
IPv60
MX records1
StatusActive
Domain technical report

Welcome to the University of South Florida | Tampa, St. Petersburg, FL

usf.edu

The University of South Florida (USF) is a high-impact, global research university dedicated to student success serving Tampa and St. Petersburg.

Generated: 2026-08-08T21:20:48-05:00 · Cached result

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IPv43
IPv60
MX1
NS3

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

3 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.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

✓
MTA-STS5 / 5 pts · Mail

Mail transport policy.

✓
TLS-RPT5 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

130 day(s) remaining.

✓
Certificate lifetime10 / 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 DNS30 / 30 pts · Network

PTR: mother.usf.edu

✓
IPv4 diversity35 / 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

3 record(s)
131.247.100.1
131.247.1.40
52.141.216.229

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
1 usf-edu.mail.protection.outlook.com.

TXT

35 record(s)
"d365mktkey=xa8jurUDwFEz74ZnQ7WlGilxH0tPdLvxa8TSlD5xx0Ux"
"google-site-verification=aWIbQ2KduYLv2g15bKXksgtjMchwc6KZzJNzJNK2_30"
"d365mktkey=DxFf3WuF0IGB61YnH34L9kDh07tGIeNOkfRouXlIfIUx"
"adobe-idp-site-verification=d879fe48fced7913c6d147a34ab70d2ff94d56f1d92c646fce75e36ce611b2b4"
"e2ma-verification=loubb"
"d365mktkey=601tv5trrvreyj6bzyslcnzax"
"status-page-domain-verification=gy36rnszmxbq"
"asv=d224a0547fb92e2496202b68f195b1b6"
"d365mktkey=UEbGLz5xI1Tx8nbciuYKn2e0B6iLhx5A5XryOtLCWOMx"
"google-site-verification=SpqYEXgDGiR3zr2qA_jvNRKD4l9zfNzQwgsqRSjRmM0"
"apple-domain-verification=f4cisO9UYFrZ6KlT"
"d365mktkey=F7uOB9wbJmFEQSALiHvgFuugwPhfs5IqAcUYt9TRIhgx"
"google-site-verification=wrSVEyGKWhHeh1JWDAKxXvrPvoPPP6eXzSX8sKIA-dU"
"yxU9UxBuQ/bkByoGU8S3012Fyu7esoAS102X+LFYacXm4opMH3Nr6c6A3o96SekSehT+xt5f22rmzu744HbCvw=="
"NYV0AYHBAGCHRKN8I4WWX4AH4H0OY2TTMAIB5RDDN"
"cisco-ci-domain-verification=65f65a56c7bb4653556a72d060506f8605f9998184dc004d40e9126209c366b"
"MS=42739637732355332AF820E28477F500065B9A72"
"d365mktkey=iNji8EDhmRpPXrRiA5z7ezInCA0vZluGDLLd4YRB80Ux"
"IVTBbFkoe6isnHlO7BuuigyKnPTbb2Q8p7AtTL3wxLxXJA5yKjp0tW/PlWqnvpCcK2DXy65unYUxqmf9SCJ4bQ=="
"BD12191BCAE563AC089C1A553D72577B"
"d365mktkey=2m5ABYUCfNSwaoNPV9jzF1F6t0pOB9TnEOsGgm4Avdcx"
"twilio-domain-verification=441d54f282e7bef5f1c32d639bea0cd4"
"d365mktkey=MrTGq7txTfKTkLhL0nf0OiEC5SrRxxKqKF2aNjiuU8Ex"
"docusign=0dada4e5-1189-4e69-8de2-977a9553c398"
"docusign=aa2efdf7-c1aa-4262-800b-3d2b94bbb6cc"
"d365mktkey=5nosf1qedtbdafq82xqtn27dv"
"atlassian-domain-verification=xB3/NkAuVnlN9v3May92Kx68o7N3FTau6mxXUaONHM3VHRHbc5R7UdkQxGsY5y6M"
"atlassian-sending-domain-verification=18e168c7-b1cc-4cdd-aa3b-8572e7c3544f"
"d365mktkey=7ip105aztsfd70m9n8eo3ejf9"
"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
"SFMC-j-cNwBW8CQysevUymKy6se0n8iBbrhUq7W-CSmW7"
"d365mktkey=BGPRxE8WTqSVTE1F5vDJxwjVA1OxgouvxAj3aoOXVVQx"
"canva-site-verification=NRk7_nO8gJ7uOY-4wmV24A"
"MS=ms23753316"
"d365mktkey=gzNvQ60b67c6fmofrMNGloYMOatQPeJ9xJOokxMFJe8x"

NS

3 record(s)
mother.usf.edu.
ziggy.usf.edu.
azure-dr-bns1.usf.edu.

SOA

1 record(s)
mother.usf.edu. postmaster.mother.usf.edu. 2026080500 7200 1200 864000 7200

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

0 record(s)
—

Not configured

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:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all

DMARC

Configured
v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email,mailto:dmarc-rua@usf.edu; ruf=mailto:dmarc-ruf@usf.edu; fo=1

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7+euBtj4SYXyisi+lftiECsLT836HMtvSBL8zuE1H/BUvHWkivr4j5XDxWpZFQPN4HFJubZ6f2F1LRPLEukx9FXn+0EJMPyKCZKgM+z059Chog8BZE7CsQIUYE9pN4OaGE1U8tWQSw18t6J/Y4VrcsJ3DXJRZPQusd3g1H8OuMcHDHEWbGoDe0/CC4mE/qZd/n6q3boD4NacGMBtY0/dExMOi58fhZH/cutyk1S7Z/plpV8eNmUfpA9ImfF9oZuGuwGBsmBWohB25Zdb4bDF6raX3b+1zOGXVRQxwiY4G0RkVW2Iyuf5RySihvQiVdKY5bJkXucLzz6WABPVDaKqwQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Welcome to the University of South Florida | Tampa, St. Petersburg, FL
Description
The University of South Florida (USF) is a high-impact, global research university dedicated to student success serving Tampa and St. Petersburg.
Final URL
https://www.usf.edu/
HTTP status
200

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://www.usf.edu/
Version
2
Server
Microsoft-IIS/10.0
X-Powered-By
ASP.NET

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
InCommon, LLC
CN
usf.edu
Valid from
2026-06-01T19:00:00-05:00
Valid until
2026-12-17T17:59:59-06:00
Days remaining
130
Protocol
TLSv1.2
Cipher
ECDHE-RSA-AES128-GCM-SHA256

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

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
131.247.1.40, 131.247.100.1, 52.141.216.229
24,68 ms
Cloudflare
1.1.1.1
131.247.1.40, 131.247.100.1, 52.141.216.229
37,67 ms
Quad9
9.9.9.9
131.247.1.40, 131.247.100.1, 52.141.216.229
23,47 ms
OpenDNS
208.67.222.222
131.247.1.40, 131.247.100.1, 52.141.216.229
25,06 ms
AdGuard
94.140.14.14
131.247.1.40, 131.247.100.1, 52.141.216.229
40,65 ms

IP, geolocation and ASNAssociated network information

131.247.100.1

No data
success
No
country
region
city
asn
organization
isp

131.247.1.40

No data
success
No
country
region
city
asn
organization
isp

52.141.216.229

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

usf-edu.mail.protection.outlook.com

Port 25: Closed/unreachable - 24.1 ms - 
Port 465: Closed/unreachable - 4044 ms - 
Port 587: Closed/unreachable - 4009.2 ms -

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