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65
Total
70
DNS
70
Email
65
Security
50
Network
60
Availability
Domainmayo.edu
IPv41
IPv60
MX records8
StatusActive
Domain technical report

Access Denied

mayo.edu

Generated: 2026-08-09T18:40:11-05:00 · Cached result

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IPv41
IPv60
MX8
NS8

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

8 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

8 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

178 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: imcourses.mayo.edu

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 response0 / 40 pts · Availability

HTTP/2 403

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
129.176.1.88

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

8 record(s)
20 mail5.mayo.edu.
20 mail2.mayo.edu.
20 mail6.mayo.edu.
20 mail3.mayo.edu.
40 mail9.mayo.edu.
20 mail7.mayo.edu.
20 mail4.mayo.edu.
20 mail8.mayo.edu.

TXT

34 record(s)
"openai-domain-verification=dv-i7ZaLCeK2qrclGOze4M2PiHQ"
"anthropic-domain-verification-mredpm=fzmnmnMBZogf4f6FTlyqMr0g3"
"facebook-domain-verification=a130yhg534txrzgca135ruqp10lzxb"
"clickup-verification=f/hOvuVPnq55MJcDlsgyKnrsfkbPFWhAYthKjDpSSpU=\""
"apple-domain-verification=tB6bZOjVnxrGsvNAUCrbvu8w13vf8gisqEuRLcHvBHY"
"ncy863bz54x4hbfx0kxpzms73067ls2p"
"airtable-verification=459857655e95cc2ee956f20303a55c81"
"jamf-site-verification=R0K83JJqj_bgnqVbpXLfAw"
"smartsheet-site-validation=OL24tsI9LLKKAV1WeGXd-YY9T6iZ7va6"
"docker-verification=dd5c1bdd-e5ff-496b-9d58-7eb86aa512da"
"google-site-verification=ls8oshAZuerjs2hd6mqV1jcZEa9SLfLFktnbWyeMqtI"
"onetrust-domain-verification=76ed506b42e14ba9b6b1c0459d2f58bf"
"google-site-verification=MV6rLYiGAtUuMD-NVU6ovO-WZc2WxXv8uk6TC_d1bhE"
"v=spf1 mx include:_spf.mayo.edu include:_spf_sf_lms.mayo.edu include:_spf_msgfe_mcmo.mayo.edu include:_spf_sf_lms_dc4.mayo.edu -all"
"Verification" "Token:" "ncy863bz54x4hbfx0kxpzms73067ls2p"
"google-site-verification=iX2UMwVMr52MWt-vkNO2rDXe11eYb3bRHmbt3ohIvto"
"mongodb-site-verification=JSoyi3kpvotIkRpHC3Eo1BdbleqBMkoZ"
"smartsheet-site-validation=KJkBWGA9r3NCAZ7EpPrJmyICOCXTUinO"
"webexdomainverification.=4386341e-4098-4aa7-8485-86546c1f3a24"
"google-site-verification=ASB9s2urVgNbATTURtg4xPD3hadpijjRERuZ2UuQb74"
"miro-verification=c81b2b4f7e056deac221edd1a0421224c3b3ba73"
"google-site-verification=YwCIRPmhdUCmizlx5MzOfLRXAOoCtviYagwGIidTzVw"
"webexdomainverification.4C675B8ACF31B136E053AB06FC0A3F65=9ecac964-5b6c-4400-9b6f-257f52f22845"
"google-site-verification=SpnGUxUsOo4HMJfzo6JnWBh-FRvKgmULlghqq1hoPEQ"
"facebook-domain-verification=d7it05etkce11qsdsdhkpo5597zimn"
"onetrust-domain-verification=3c50588d574743f494105a5f1f7d202a"
"neat-pulse-domain-verification-7X1p1Rv=ee076bee-957c-4239-95d6-43aa3a297b08"
"fwhJ2Yilhr8oJN+TnFhPLKARgF3pd+RukYS5/VDQrfpBkGzaFqGx6iwvxkHVU918P12qy8ACL1H13994woZeqg=="
"google-site-verification=KjJvI5_SbPfwRcL385kzornI_4PTVnwsOyV85kyrSWE"
"google-site-verification=Z69yPWJq4hhx0snUrXd4Vx6UfzNYL7nPsBXAnmhBZeQ"
"google-site-verification=kqbyVf1ni1Yu1mXkJHma_q6gfisBUEUDx0vZIeaFBuU"
"atlassian-domain-verification=T9ZRvf1pkRnBgild0TG3diy84RfYObI0l9PqdfU20XCUkhwbrARtKKko0/xSrZaO"
"adobe-idp-site-verification=1a1d294e03dc1f18f089fdab21096893adea673f8881987239a14971cf7c89b5"
"google-site-verification=YSC2t2Lb3qKAUeXMILICpESh3VDYOW4LL9dkEq0JYX4"

NS

8 record(s)
a18-66.akam.net.
a1-70.akam.net.
a14-64.akam.net.
a3-66.akam.net.
a13-66.akam.net.
dns2.mayo.edu.
dns1.mayo.edu.
a10-66.akam.net.

SOA

1 record(s)
dns1.mayo.edu. noc.mayo.edu. 9653 10800 3600 2592000 900

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 mx include:_spf.mayo.edu include:_spf_sf_lms.mayo.edu include:_spf_msgfe_mcmo.mayo.edu include:_spf_sf_lms_dc4.mayo.edu -all

DMARC

Configured
v=DMARC1; p=reject; sp=reject; pct=100; rf=afrf; ri=86400; fo=1; aspf=s; adkim=s; ruf=mailto:dmarc-details@mayo.edu; rua=mailto:dmarc-summary@mayo.edu

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Access Denied
Description
Final URL
https://www.mayo.edu/
HTTP status
403

HTTP

Status
HTTP/2 403
Final URL
https://www.mayo.edu/
Version
3
Server
BigIP
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Sectigo Limited
CN
mwredirects5.mayo.edu
Valid from
2026-07-19T19:00:00-05:00
Valid until
2027-02-03T17:59:59-06:00
Days remaining
178
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
129.176.1.88
61,32 ms
Cloudflare
1.1.1.1
129.176.1.88
66,32 ms
Quad9
9.9.9.9
129.176.1.88
62,84 ms
OpenDNS
208.67.222.222
129.176.1.88
153,21 ms
AdGuard
94.140.14.14
129.176.1.88
61,80 ms

IP, geolocation and ASNAssociated network information

129.176.1.88

Identified
success
Yes
country
United States
country_code
US
region
Minnesota
city
Rochester
latitude
44.0484186
longitude
-92.4948369
asn
7973
organization
Mayo Foundation for Medical Education and Research
isp
Mayo Foundation for Medical Education and Research
timezone
America/Chicago

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

mail5.mayo.edu

Port 25: Closed/unreachable - 0.6 ms - 
Port 465: Closed/unreachable - 4020.6 ms - 
Port 587: Closed/unreachable - 4029.5 ms -

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