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83
Total
70
DNS
90
Email
81
Security
65
Network
100
Availability
Domainiste.org
IPv44
IPv60
MX records1
StatusActive
Domain technical report

ISTE | Home

iste.org

The International Society for Technology in Education (ISTE) is a nonprofit organization that helps educators use technology to revolutionize learning.

Generated: 2026-08-10T16:48:43-05:00 · Cached result

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IPv44
IPv60
MX1
NS4

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

4 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

4 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-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

143 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: ec2-35-171-14-224.compute-1.amazonaws.com

✓
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

4 record(s)
35.171.14.224
52.44.143.207
54.145.37.141
54.145.170.158

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 iste-org.mail.protection.outlook.com.

TXT

16 record(s)
"v=spf1 ip4:108.28.104.81 ip4:50.201.1.7 ip4:50.201.1.16 include:spf.protection.outlook.com ip4:74.115.204.1/24 ip4:23.21.109.212 include:8020079.spf05.hubspotemail.net mx include:mailgun.org include:a._spf.brightspace.com include:_spf.iste.org ~all"
"facebook-domain-verification=ncnbok6bspyqb2nlq9is4ajt2p5qwg"
"apple-domain-verification=zJnSxTYLb7tXgbYg"
"tem27mdg0ej3lu3beeqpmc7or3"
"google-site-verification=2LQxnUyCcjagf9yVN4zSB2oainFU7AZwgHAwQAIbfUU"
"smartsheet-site-validation=P5pAtn7cKKSEioa1wfppBrnlhmVSGwK_"
"docusign=1194e1b9-0d89-4364-953e-6a800a929c65"
"google-site-verification=ems9BFgd4nNoTHifdU73eM2VfB2SyNoG7K3pz10PoNg"
"ZOOM_verify_lgeS-QL5TAmP6bR07_QLIA"
"Sendinblue-code:131f1cc2f37bf7671c8e0d2740c6d0a4"
"google-site-verification=bdg7BlHz28ugFG7H3JJJYzWlyzF1UfolsecOlaonXWE"
"@ or iste.org"
"facebook-domain-verification=i9tcqu9b9aki8mrvvc1d49f788ozkd"
"MS=ms67871135"
"R/Nv04/twbWeVQcEX9OhxR608UUgUKUYPJct5P2FRMqK6LdaBHs70wHhBZEBvT2tgu3VV933mpYhmEZ/S8WrSA=="
"knowbe4-site-verification=49bc84f201de6be9c899d76696ddf83f"

NS

4 record(s)
ns-974.awsdns-57.net.
ns-1513.awsdns-61.org.
ns-1745.awsdns-26.co.uk.
ns-321.awsdns-40.com.

SOA

1 record(s)
ns-1513.awsdns-61.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400

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 ip4:108.28.104.81 ip4:50.201.1.7 ip4:50.201.1.16 include:spf.protection.outlook.com ip4:74.115.204.1/24 ip4:23.21.109.212 include:8020079.spf05.hubspotemail.net mx include:mailgun.org include:a._spf.brightspace.com include:_spf.iste.org ~all

DMARC

Configured
v=DMARC1; p=quarantine; sp=none; rua=mailto:dmarc@iste.org!10m; ruf=mailto:dmarc@iste.org!10m; rf=afrf; pct=100; ri=86400

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDAhcnPs23wcKNl8p2/0TA8KWqG47iKqhG80It9haPhWfkIzcVa7TQs3DUEG1THPyAZCThzcr5Ud4p0F4qh14D6+8V2YGbEcxjKXkio0Q+6yn965wyFkkA6pCC9ByCrPcDdUpmbA4RM3is4MDgHsxBYRJh4d02XVVFGWxgx7mIfWQIDAQAB; n=1024,1453070176,1468794976

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
ISTE | Home
Description
The International Society for Technology in Education (ISTE) is a nonprofit organization that helps educators use technology to revolutionize learning.
Final URL
https://iste.org/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://iste.org/
Version
3
Server
nginx
X-Powered-By
SEOmatic

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Amazon
CN
iste.org
Valid from
2025-12-02T18:00:00-06:00
Valid until
2026-12-31T17:59:59-06:00
Days remaining
143
Protocol
TLSv1.2
Cipher
ECDHE-RSA-AES128-GCM-SHA256

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
35.171.14.224, 52.44.143.207, 54.145.170.158, 54.145.37.141
97,54 ms
Cloudflare
1.1.1.1
35.171.14.224, 52.44.143.207, 54.145.170.158, 54.145.37.141
93,00 ms
Quad9
9.9.9.9
35.171.14.224, 52.44.143.207, 54.145.170.158, 54.145.37.141
71,61 ms
OpenDNS
208.67.222.222
35.171.14.224, 52.44.143.207, 54.145.170.158, 54.145.37.141
87,49 ms
AdGuard
94.140.14.14
35.171.14.224, 52.44.143.207, 54.145.170.158, 54.145.37.141
255,60 ms

IP, geolocation and ASNAssociated network information

35.171.14.224

No data
success
No
country
region
city
asn
organization
isp

52.44.143.207

No data
success
No
country
region
city
asn
organization
isp

54.145.37.141

No data
success
No
country
region
city
asn
organization
isp

54.145.170.158

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

iste-org.mail.protection.outlook.com

Port 25: Closed/unreachable - 20.8 ms - 
Port 465: Closed/unreachable - 4004.2 ms - 
Port 587: Closed/unreachable - 4040 ms -

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