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79
Total
85
DNS
90
Email
65
Security
35
Network
100
Availability
Domainisi.edu
IPv42
IPv60
MX records2
StatusActive
Domain technical report

Home | Information Sciences Institute

isi.edu

Delivering the future ISI’s mission is to advance society through pioneering research and technological innovation. We cultivate an intellectually vibrant environment where researchers are empowered to imagine bold solutions to complex problems and to develop into world-class leaders. Guided by integrity, inclusion, and a commitment to excellence, we create unprecedented capabilities that harness information to…

Generated: 2026-08-09T20:43:56-05:00 · Cached result

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IPv42
IPv60
MX2
NS3

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

2 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 chain15 / 15 pts · Dns

DS and DNSKEY detected.

!
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

68 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 DNS0 / 30 pts · Network

PTR not detected.

✓
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/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)
141.193.213.20
141.193.213.21

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
10 mxb-006c3502.gslb.gpphosted.com.
10 mxa-006c3502.gslb.gpphosted.com.

TXT

10 record(s)
"OSSRH-90447"
"568C5F1B5AD70A1F2416896C0FD0F4C7"
"infoblox-domain-mastery=9c12fcf7c63542b120c0636e2605be7f76b23c4fb8309890834521da0076d73468"
"apple-domain-verification=5FZgJkmHEGYFXkSg"
"docusign=55f9b41e-27b7-49e4-af9e-c11b83854c61"
"tgHn89inYU4zTEMfv0T+jS8XykcPIsqF6+lvfjStaf639eXGhSSOSdNlSW/qss6Up3dPCv+X6+8gZOLm9R+gMA=="
"v=spf1 a mx a:ant.isi.edu a:hmail.jitbit.com a:hmail2.jitbit.com ip4:209.85.128.0/17 ip4:128.9.43.10 ip4:128.9.43.11 ip4:128.9.43.20 ip4:128.9.16.21 ip6:2603:10b6:a03:32a::11/32 ip6:2a01:111:f400:7e8c:0:0:0:206/32 ip4:128.9.48.0/20 " "ip4:67.231.155.152 ip4:67.231.147.152 ip4:205.220.168.151 ip4:205.220.180.151 ip4:128.9.28.9 ip4:128.9.37.21 ip4:128.9.37.125 ip4:128.9.37.30 ip4:128.9.37.100 ip6:2001:1878:401::8009:1c09 include:spf.protection.outlook.com include:_spf.google.com ~all"
"_3ji0kq2cjlddas4tqi3mbon3xjhhxps"
"atlassian-domain-verification=aNYeVhAS9Ogdeh/aU4x04/fQ9ElE8q0NlhcTa2xB/Ze61135GWqDo3dMMRw/SWmM"
"google-site-verification=ZjFmGBChHGC2uWtZW--UCee-FyRKPmyC8qoBKWA4BXE"

NS

3 record(s)
ns2.isi.edu.
ns3.isi.edu.
ns4.isi.edu.

SOA

1 record(s)
mdrinfoblox-gm01.ads.isi.edu. hostmaster.dev.null. 2022898648 14400 1440 2419200 60

CAA

0 record(s)
—

Not configured

DS

1 record(s)
55346 8 2 929AF8EB2E1F7753FD17A96C7F5FB49D458FFAA110B6F33761FF4BF6 DD998550

DNSKEY

4 record(s)
257 3 8 AwEAAbiLSomhGL8UeMCT3zeRLFaJs+F35760Zz1LweiBG0h89me+LUTZ oX0kwR4U8/WGB0Kmx9pyMuzRFpjLcYBmyPG0M3Kgeg0NtEX+wbmdmyt+ 9p2j1pNXEWwkfG5QquNrBSySTXqWUHR7HodtlTfpblLMJmx0eLbLiTuM XIvnzOR9qT7DOXSlzv225ast6A9O23RrHGdaT5bGOwzQchk80Vv12yd7 ERo+jflkmAW1p1MqoQN9Be0wkTcq0+zs+i7KWrR9BIVjozXZsjAAMIsK JfwYlUNsEisoLNdapPT6g+27KpSOwtGZB/LzBDPMeZNpFc+sjTNrwA+3 GZ2+P71LRRk=
256 3 8 AwEAAd3Nt7o4poV7ldRvfoZMxPUUqao3iVwFaZH1bW+J59S/M0aR3w2y a+5kNyQYEkRkPs3a2X1Is5BOuwoMVBMLumDnMU7cZkeAkI+Hnc3/C3yk FxknWtUb1Son4wjBR525900aACMtOSR/8/LqTmsBuJXy02RlW/ulS6JZ wpwgaON1
256 3 8 AwEAAcq90oqur2lXqL0DgU7hF8IPG+sj7HKPTJ0Rjvtp9tuhPaYvRFOF bExDTTAMEG/AuiwQOnz9/Nr5MoF4wGVotaEaEzqu3jYwpaorXPyuANCP PMXyuENUtczEtCkW5QZZ0ju5/ZjvD1nRjitlHvEAFkSzko+mv2rc3Qw/ qckRqk7x
256 3 8 AwEAAcI0r5DTJkV77O4z+H1/dMVFwiuOOuge9VhY6WIt0Htn0U+p1PaH 0mUKhcHEjmG2M1d6Wo8eXavXB6xxJZz0XyXizwf0G9o8pylm9O3UES/7 jS5/x0fMQTI8vwnpXY2QHgDvbIn7hJd1DbaoioEYJNJTtlweu6eb3Ee/ NKEs70Ed

RRSIG

4 record(s)
SOA 8 2 14400 20260814014333 20260810004333 7981 isi.edu. pY2MBqCVM5jVNvIkF2+Wjk2c/Gdf6HrLi6Oj7Q/0YGnV8lp12pHkkg0d 0aPlgmauKorOPARXPrIYpvCy7Anq1dVqhaGikATwVh0n+TyOUYH1Pqhi 11R13SGMjLMnSN/+93Nf1Fr/Zu7UwlU8cP0IAvWSY+zGuYSEl2TYT+nv hro=
NS 8 2 14400 20260814003608 20260809235931 7981 isi.edu. kLc2ATAysMjkRizTUZZhnP9CKecn/IV8iZ69y5OK8tCTh6RZOoNmaXnD Mx1nrrS+2bUz9cssI/+eoa/cTg1EmeUB5TDEofWhK6LSxIzLSfbURf/H RamEXtGNdyiwZI9nUVDmvhHjEOxtbSMTSXmO5hxiYw0DIbPqn2Mk9x5t F5A=
TXT 8 2 14400 20260813105624 20260809100002 7981 isi.edu. WFYF4xiJte8H8U4KHZRHtBssmigutY6Pp4jblfGVM0qsoi7HVqg192ln iFrGnuHnaCPWmkOf4hIleaMnAzyua3kFO0dNYnhDXiOqwCQXSgpbrvdC 7wpz1ocT+t0KjKUytGdgytVyvwvfPSb3Q0WuaziVUoanDZ9B67DSkugr ehA=
DS 13 2 86400 20260814033304 20260807022304 6705 edu. ptcTZ+LqoPylVnOhd6M9BUcHfCfbmQ43DXptd4U3pYdyRgpbm0B9V9uB MRSLlH4qml7fXKVlamHPNJOa5JkXSw==

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 a mx a:ant.isi.edu a:hmail.jitbit.com a:hmail2.jitbit.com ip4:209.85.128.0/17 ip4:128.9.43.10 ip4:128.9.43.11 ip4:128.9.43.20 ip4:128.9.16.21 ip6:2603:10b6:a03:32a::11/32 ip6:2a01:111:f400:7e8c:0:0:0:206/32 ip4:128.9.48.0/20 ip4:67.231.155.152 ip4:67.231.147.152 ip4:205.220.168.151 ip4:205.220.180.151 ip4:128.9.28.9 ip4:128.9.37.21 ip4:128.9.37.125 ip4:128.9.37.30 ip4:128.9.37.100 ip6:2001:1878:401::8009:1c09 include:spf.protection.outlook.com include:_spf.google.com ~all

DMARC

Configured
v=DMARC1; p=none; sp=none; pct=100; rua=mailto:dmarc_reports@isi.edu; ruf=mailto:dmarc_reports@isi.edu

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDUyefHCVPs70JQQtkJWwL732slCXm/g9gmeitTf0URY3YRtM3TmFjrMv5E1yFMZBePBEH5ijR3lHlDo/vupM3Hu2F8g32A9g4MCm5BMpIAbrJKwG7f4juReDaAmKU1BT2fP3gleig3YB26GsvgOmEHadLSwAtSo490CEDqcNCwCQIDAQAB; n=1024,1453118966,1468843766

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Home | Information Sciences Institute
Description
Delivering the future ISI’s mission is to advance society through pioneering research and technological innovation. We cultivate an intellectually vibrant environment where researchers are empowered to imagine bold solutions to complex problems and to develop into world-class leaders. Guided by integrity, inclusion, and a commitment to excellence, we create unprecedented capabilities that harness information to…
Final URL
https://www.isi.edu/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.isi.edu/
Version
3
Server
cloudflare
X-Powered-By
WP Engine

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Google Trust Services
CN
isi.edu
Valid from
2026-07-19T03:00:33-05:00
Valid until
2026-10-17T04:00:28-05:00
Days remaining
68
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

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
141.193.213.20, 141.193.213.21
184,17 ms
Cloudflare
1.1.1.1
141.193.213.20, 141.193.213.21
53,04 ms
Quad9
9.9.9.9
141.193.213.20, 141.193.213.21
220,67 ms
OpenDNS
208.67.222.222
141.193.213.20, 141.193.213.21
167,13 ms
AdGuard
94.140.14.14
141.193.213.20, 141.193.213.21
43,48 ms

IP, geolocation and ASNAssociated network information

141.193.213.20

No data
success
No
country
region
city
asn
organization
isp

141.193.213.21

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

mxb-006c3502.gslb.gpphosted.com

Port 25: Closed/unreachable - 29.1 ms - 
Port 465: Closed/unreachable - 4048.7 ms - 
Port 587: Closed/unreachable - 4020.8 ms -

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