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80
Total
70
DNS
90
Email
77
Security
50
Network
100
Availability
Domainslu.edu
IPv41
IPv60
MX records2
StatusActive
Domain technical report

Saint Louis University | SLU.edu : SLU - Saint Louis University

slu.edu

Saint Louis University (SLU), a top-ranked R1 research institution, offers 96 bachelor’s and 131 master’s and doctoral programs. Explore SLU’s academic excellence, innovative research, and mission-driven health care.

Generated: 2026-08-09T12:54:39-05:00 · Cached result

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IPv41
IPv60
MX2
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 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

2 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

97 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: slu.oudeve.com

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/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
173.213.236.59

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
20 mxb-00234e01.gslb.pphosted.com.
10 mxa-00234e01.gslb.pphosted.com.

TXT

28 record(s)
"brevo-code:9a413a0283d094a472ebc5eab0a8491a"
"apple-domain-verification=BHpJhilRKq5wgSNJ"
"@ 3600 IN TXT adobe-idp-site-verification=af8027d66c89fdf8f08466470f26d0a80660368cc134b40eeb3d61cdac2ba9f3"
"google-site-verification=NHIoJ23Lv-tqKjWs9EGuY9aUOOeSkfFD--x1BzIcjBo"
"MS=ms53081654"
"u1p77t1ksnhftfvrg95dtf0jup"
"d365mktkey=2lWV0dRXJcWxMg4c2YX8WZl3eqjjOeZ67IXmxKTfd8Ax"
"jamf-site-verification=S3FHBSml8Ffd5Hv7LZG2YQ"
"d365mktkey=OFSutl9nTIZRZFadaSKJmay78KSBYtnxZjxyo9XZxBEx"
"MS=ms13196215"
"7946DAB0B7A9DF1D95140400BF2460B1"
"iContact1296658"
"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoIqW22W3TUFD4kcUoN6QLpTZU718TWYnTO6XpVWOlL2ZVCzb6XmsxJP/ONLZ2NBBAq6CCJrA9+7ln9Ml0LTlONJlWpwEY2RJgIixzZcFWVvCyktACaX8WOGtwou1mP3rgMYX5ur4nnjPMNG2mp5lGhYpXfgwg+HCwtE96nP1JjwIDAQAB"
"google-site-verification=03aiCj8jumUNtLn1uO1zys1Av4LApOtCetbw5ZtpDSE"
"m98prj8e1ojp37v6rfok1fmodq"
"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:mail.zendesk.com include:_spf.qualtrics.com include:_spf.salesforce.com include:_spf.elasticemail.com ~all"
"pardot1108362=a55a836e09421b76fbbd426427a83ee2d825b39a7a4873500ec436328c3a4009"
"google-site-verification=QvT8Osv_Li3E10RAQq8XD1CPTnClz-JjkZzLUeHrjLI"
"e2ma-verification=oqfcb"
"MS=ms41681430"
"iiqnleb3mtmtkj7lgbckj1b9v1"
"google-site-verification=VZxzouRLXyw8y4hgzUvQzBba0T5ffv5zLfzTASnl1tg"
"nqd7ini477kpqu1ng4rfohsmqq"
"brevo-code:59b3a18744d24f960bd78166f34f87c5"
"sending_domain1108362=d95767abaacd79903f2cdd9fa0b5b46f5bb61d1d2d736d0fae87ed7e9502d950"
"google-site-verification=OiXg92__zmUGj987BW03wQV7CzYj2nS3iEHwe7lotkA"
"docusign=c30cf5aa-7ab3-42f5-9597-db748aac4fd3"
"MS=ms50701882"

NS

2 record(s)
lloyd.ns.cloudflare.com.
deb.ns.cloudflare.com.

SOA

1 record(s)
deb.ns.cloudflare.com. dns.cloudflare.com. 2411630309 10000 2400 604800 1800

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:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:mail.zendesk.com include:_spf.qualtrics.com include:_spf.salesforce.com include:_spf.elasticemail.com ~all

DMARC

Configured
v=DMARC1;p=reject;rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;fo=1

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDO0Tk2C94uNuemLq90vxhqn+Nj+kPjzDKCUrX5qdFQhNF/5vKI8Wn2Py0AjmtNRNEXGgSjnQ3z3EuxU0wDK0r7JUr00CrrXhSoE35rcSNj4/9GC+parPaeOhZnaC8jKzdUbB1vBP7gC68v9gXR3UYuQPUJzzQyT3mU8TsU/bgg5wIDAQAB; n=1024,1502287529,1518185129

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Saint Louis University | SLU.edu : SLU - Saint Louis University
Description
Saint Louis University (SLU), a top-ranked R1 research institution, offers 96 bachelor’s and 131 master’s and doctoral programs. Explore SLU’s academic excellence, innovative research, and mission-driven health care.
Final URL
https://www.slu.edu/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.slu.edu/
Version
3
Server
slu.edu
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Internet2
CN
slu.edu
Valid from
2025-11-13T18:00:00-06:00
Valid until
2026-11-14T17:59:59-06:00
Days remaining
97
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

3 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
—
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
173.213.236.59
48,48 ms
Cloudflare
1.1.1.1
173.213.236.59
19,15 ms
Quad9
9.9.9.9
173.213.236.59
38,49 ms
OpenDNS
208.67.222.222
173.213.236.59
36,00 ms
AdGuard
94.140.14.14
173.213.236.59
53,77 ms

IP, geolocation and ASNAssociated network information

173.213.236.59

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

mxb-00234e01.gslb.pphosted.com

Port 25: Closed/unreachable - 28.6 ms - 
Port 465: Closed/unreachable - 48.1 ms - 
Port 587: Closed/unreachable - 76.1 ms -

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