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Total

DNS

Email

Security

Network

Availability

Domainku.edu.tr

IPv41

IPv60

MX records7

StatusActive

Domain technical report

ERROR: The request could not be satisfied

ku.edu.tr

Generated: 2026-08-11T08:29:19-05:00 · Cached result

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IPv41

IPv60

MX7

NS3

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

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 policy5 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

7 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

49 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: ec2-18-197-116-67.eu-central-1.compute.amazonaws.com

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)

18.197.116.67

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

7 record(s)

30 ASPMX3.GOOGLEMAIL.COM.
30 ASPMX2.GOOGLEMAIL.COM.
20 ALT2.ASPMX.L.GOOGLE.COM.
30 ASPMX5.GOOGLEMAIL.COM.
30 ASPMX4.GOOGLEMAIL.COM.
20 ALT1.ASPMX.L.GOOGLE.COM.
10 ASPMX.L.GOOGLE.COM.

TXT

23 record(s)

;; communications error to 69.64.44.20#53: timed out
"zoho-verification=zb72358058.zmverify.zoho.com"
"apple-domain-verification=ZOo0eQQ9QyhMa9TP"
"tuKtxr7aLlpwlkVJhcslNbRwqc4IuF/XvtaullVe/kw="
"site24x7-signals-domain-verification=890ba32eacb1b9c76d1af2b5ec4b6730"
"v=spf1 ip4:88.255.96.0/24 ip4:66.151.109.0/24 ip4:69.196.242.128/26 ip4:69.196.241.0/28 ip4:46.183.242.192/28 ip4:202.38.144.192/28 ip4:69.196.236.208/28 ip4:23.103.132.0/22 ip4:23.103.136.0/21 ip4:23.103.144.0/20 ip4:23.103.198.0/23 ip4:23.103.200.0/22 " "ip4:40.92.0.0/14 ip4:40.107.0.0/17 ip4:52.100.0.0/14 ip4:65.55.88.0/24 ip4:65.55.169.0/24 ip4:94.245.120.64/26 ip4:104.47.0.0/17 ip4:157.55.234.0/24 ip4:157.56.110.0/23 ip4:157.56.112.0/24 ip4:207.46.100.0/24 ip4:207.46.163.0/24 ip4:213.199.154.0/24 " "ip4:213.199.180.128/26 ip4:216.32.180.0/23 ip4:20.176.0.0/14 ip4:34.250.117.27/32 ip4:34.250.203.24/32 ip6:2a01:111:f400:7c00::/54 ip6:2a01:111:f400:fc00::/54 ip6:2a01:111:f403::/48 include:_spf.google.com include:spf.protection.outlook.com " "include:transmail.net include:amazonses.com include:spf.symplicity.com ~all"
"zoho-verification=zb99040165.zmverify.zoho.com"
"anthropic-domain-verification-fkygzy=wvP1gqNdMEJ9VEsGycdFqxBLt"
"5f1dc5a90dc0457f2d1bab4c02b63503.ku.edu.tr "
"google-site-verification=3xUxo9ItnFD0phAc1p_iikgOlIkhAngEnphJwzs3YNg"
"parallels-domain-verification=dd54c2687dd44d8abf7c977cb64821c74dcc153af52443a5b6b7da19049ac469"
"smartsheet-site-validation=-5EPMRMyWqJ_pXvD2G-eCW6ivCiblpDg"
"wiz-domain-verification=4c823e454b38ac39bc5b5359d3d9a2307fc192c61735a57ad5fe61b47c1f5a66"
"cisco-ci-domain-verification=26dd45e9a76bf904cbcd6503b8a9cd91771086a9d25953fc476bc28ed735ad65"
"google-site-verification=BLaxUjM-XUaOYhiPjsRIpAmVV2-HPySQXdBeQZcJ04M"
"zoho-verification=zb38833662.zmverify.zoho.com"
"MS=ms93026775"
"ZOOM_verify_L5oI_LNJT4WTqmyTKAd77w"
"EHoAxik3jNHYFI3hSMPQiutu64BErmF09QAWsGjnk/OWjMnjBYC5t6Ky2Yg0urTU8nehB6+PH94l6f7kAflFGQ=="
"atlassian-domain-verification=LE04lkoGDupTA8UHwpULxK0fcc6yHgsBbcSsx7fen3A10Xj6HdXc9bjQacahpafH"
"facebook-domain-verification=ou0dmf9fmskd39klmhhobpcggassoe"
"smartsheet-site-validation=XJvd-uu6L-6dCOmizNC57chFOrxJQYbR"
"U9dCN1QWsJ1zoPFwLMaMVJcQwdTwJ3H5c_W80mrHZ-E"

NS

3 record(s)

ns01.ku.edu.tr.
ns04.ku.edu.tr.
ns02.ku.edu.tr.

SOA

1 record(s)

ns02.ku.edu.tr. dnsadmin.ku.edu.tr. 2020054284 28800 7200 1209600 1800

CAA

21 record(s)

0 iodef "mailto:dnsadmin@ku.edu.tr"
0 issue "ssl.com"
0 issue "1and1.digitalcertvalidation.com"
0 issuewild "digicert.com"
0 issuewild "amazon.com"
0 issue "sectigo.com"
0 issue "letsencrypt.org"
0 issue "www.digicert.com"
0 issue "geotrust.com"
0 issue "intermediatecertificate.digitalcertvalidation.com"
0 issue "stratossl.digitalcertvalidation.com"
0 issuewild "letsencrypt.org"
0 issue "digicert.com"
0 issue "amazon.com"
0 issue "digicert.ne.jp"
0 issuewild "sectigo.com"
0 issue "thawte.com"
0 issuewild "ssl.com"
0 issue "volusion.digitalcertvalidation.com"
0 issue "rapidssl.com"
0 issue "cybertrust.ne.jp"

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 ip4:88.255.96.0/24 ip4:66.151.109.0/24 ip4:69.196.242.128/26 ip4:69.196.241.0/28 ip4:46.183.242.192/28 ip4:202.38.144.192/28 ip4:69.196.236.208/28 ip4:23.103.132.0/22 ip4:23.103.136.0/21 ip4:23.103.144.0/20 ip4:23.103.198.0/23 ip4:23.103.200.0/22 ip4:40.92.0.0/14 ip4:40.107.0.0/17 ip4:52.100.0.0/14 ip4:65.55.88.0/24 ip4:65.55.169.0/24 ip4:94.245.120.64/26 ip4:104.47.0.0/17 ip4:157.55.234.0/24 ip4:157.56.110.0/23 ip4:157.56.112.0/24 ip4:207.46.100.0/24 ip4:207.46.163.0/24 ip4:213.199.154.0/24 ip4:213.199.180.128/26 ip4:216.32.180.0/23 ip4:20.176.0.0/14 ip4:34.250.117.27/32 ip4:34.250.203.24/32 ip6:2a01:111:f400:7c00::/54 ip6:2a01:111:f400:fc00::/54 ip6:2a01:111:f403::/48 include:_spf.google.com include:spf.protection.outlook.com include:transmail.net include:amazonses.com include:spf.symplicity.com ~all

DMARC

Configured

v=DMARC1; p=quarantine; rua=mailto:mail-admin@ku.edu.tr; pct=100; adkim=r; aspf=s; rf=afrf; ri=43200; sp=none

DKIM

Selector default

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDf/ElN/hlIqrosYoq3DIjtoIedWH1ibHrnAaEE5L+ckBoRNsV1957crPIuxrTe1GmikqC2VxPvD+afEM5EIt7bqTwZ0VE+9VTY/wyFSZOY5HrIE44qlpz7ehZ0xRqFHcu7/lPhC4ToX4R1ITgjC0KigdPY3eoX+eF4KyVERhNeeQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

ERROR: The request could not be satisfied

Description

Final URL

https://www.ku.edu.tr/

HTTP status

403

HTTP

Status

HTTP/2 403

Final URL

https://www.ku.edu.tr/

Version

Server

CloudFront

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

*.ku.edu.tr

Valid from

2025-10-05T19:00:00-05:00

Valid until

2026-09-29T18:59:59-05:00

Days remaining

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES256-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

18.197.116.67

197,33 ms

Cloudflare

1.1.1.1

18.197.116.67

327,64 ms

Quad9

9.9.9.9

18.197.116.67

217,34 ms

OpenDNS

208.67.222.222

18.197.116.67

825,08 ms

AdGuard

94.140.14.14

18.197.116.67

178,25 ms

IP, geolocation and ASNAssociated network information

18.197.116.67

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

ASPMX3.GOOGLEMAIL.COM

Port 25: Closed/unreachable - 0.9 ms - 
Port 465: Closed/unreachable - 4020.8 ms - 
Port 587: Closed/unreachable - 4021.1 ms -

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