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71
Total
70
DNS
90
Email
73
Security
50
Network
60
Availability
Domainiwkoeln.de
IPv41
IPv60
MX records3
StatusActive
Domain technical report

Home - Institut der deutschen Wirtschaft (IW)

iwkoeln.de

Das IW ist ein privates Wirtschaftsforschungsinstitut, das sich mit Wirtschafts- und Sozialpolitik, dem Bildungssystem und dem Arbeitsmarkt beschäftigt.

Generated: 2026-08-10T17:51:07-05:00 · Cached result

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IPv41
IPv60
MX3
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

3 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

107 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: dedi4929.your-server.de

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/2 401

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
78.47.106.28

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

3 record(s)
20 mx2.mas.t-systems-service.com.
10 mx1.mas.t-systems-service.com.
30 mx3.mas.t-systems-service.com.

TXT

9 record(s)
"v=spf1 a:spf.mas.t-systems-service.com a:k60828.coveto.de include:spf.mailjet.com ip4:87.79.12.44 ip4:87.79.12.45 ip4:89.1.85.243 ip4:176.9.21.28 ip4:212.114.35.242 ip4:212.114.34.232 ip4:212.114.34.50 ip4:212.114.35.226 ip4:85.13.129.239 ip4:172.16.244.1" "30 ip4:87.79.12.40 ip4:172.16.244.15 ip4:79.142.32.16 ip4:85.13.144.213 include:sendgrid.net include:spf.protection.outlook.com include:spf.crsend.com include:_spf.recruiting-portal.com include:spf.orbit.teamleader.eu -all"
"apple-domain-verification=tGiIYiXI0xJvPAfO"
"201712141416045uyjvkj5xn41l2usoc381vrf7d3xz85whzsn1v3kqpsra7fqkk"
"langdock-verify=vBbNAT2zZTpb6vQEW3i-00g2sRoRrTr7MbuVw7J8PWk"
"atlassian-domain-verification=uPRmh1XxvV032a8zKbaxvNI0ZnojyP6cXHYoYFCTHaM9sPli8fciIsGXz6yBzz1t"
"google-site-verification=vwZaS5UefEAQ3Tsxbh_CqJPxhoE0VT2L3HwFQc4C_9U"
"X/ZeVzL7IhK6TSKlO3Kw3dug2Xzslbq2WdKEa/2YtkYYx4aOqWOs+yQo21J4TcOFuoI5xwPERNtZXDojla+rQw=="
"DBDAA6EF044D9C98596D5E19F0A712E66805CC23"
"linkedin-site-verification=351659d6-e7ea-4a8a-b732-7fa4481f4a93"

NS

2 record(s)
ns28.domaincontrol.com.
ns27.domaincontrol.com.

SOA

1 record(s)
ns27.domaincontrol.com. dns.jomax.net. 2026072301 28800 7200 604800 600

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 a:spf.mas.t-systems-service.com a:k60828.coveto.de include:spf.mailjet.com ip4:87.79.12.44 ip4:87.79.12.45 ip4:89.1.85.243 ip4:176.9.21.28 ip4:212.114.35.242 ip4:212.114.34.232 ip4:212.114.34.50 ip4:212.114.35.226 ip4:85.13.129.239 ip4:172.16.244.130 ip4:87.79.12.40 ip4:172.16.244.15 ip4:79.142.32.16 ip4:85.13.144.213 include:sendgrid.net include:spf.protection.outlook.com include:spf.crsend.com include:_spf.recruiting-portal.com include:spf.orbit.teamleader.eu -all

DMARC

Configured
v=DMARC1; p=none; pct=100; rua=mailto:dmarc@iwkoeln.de; ruf=mailto:dmarc@iwkoeln.de; fo=1

DKIM

Selector mailjet
k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDjsTBZluodABSzbRyCZ+2F1Ej7iCwpJ+6JePvz6BGMtVbTe3guVh3ycLCVEIDB3pF9whKS+n7dDjwfw+CBr9NWm+vaNYSRE4HW29Cir4yhJ1iONYu0SKO8oXVufA3hYZDUVQGExpvKVg4jfJEfe3tQjGTOYXSyrWDFGtWhp0gimQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Home - Institut der deutschen Wirtschaft (IW)
Description
Das IW ist ein privates Wirtschaftsforschungsinstitut, das sich mit Wirtschafts- und Sozialpolitik, dem Bildungssystem und dem Arbeitsmarkt beschäftigt.
Final URL
https://www.iwkoeln.de/
HTTP status
206

HTTP

Status
HTTP/2 401
Final URL
https://www.iwkoeln.de/
Version
3
Server
Apache
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert Inc
CN
iwkoeln.de
Valid from
2026-05-10T19:00:00-05:00
Valid until
2026-11-25T17:59:59-06:00
Days remaining
107
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

2 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
—
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
78.47.106.28
114,03 ms
Cloudflare
1.1.1.1
78.47.106.28
93,18 ms
Quad9
9.9.9.9
78.47.106.28
136,14 ms
OpenDNS
208.67.222.222
78.47.106.28
106,29 ms
AdGuard
94.140.14.14
78.47.106.28
408,78 ms

IP, geolocation and ASNAssociated network information

78.47.106.28

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

mx2.mas.t-systems-service.com

Port 25: Closed/unreachable - 120.9 ms - 
Port 465: Closed/unreachable - 4007.8 ms - 
Port 587: Closed/unreachable - 4021.1 ms -

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