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81
Total
70
DNS
90
Email
81
Security
50
Network
100
Availability
Domaincoldwellbanker.com
IPv41
IPv60
MX records1
StatusActive
Domain technical report

Real Estate and Homes for Sale - Coldwell Banker

coldwellbanker.com

coldwellbanker.com can help you find homes for sale, realtors, and information about your local real estate market.

Generated: 2026-08-11T01:46:31-05:00 · Cached result

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IPv41
IPv60
MX1
NS4

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

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

97 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: a5e6e5875811b641b.awsglobalaccelerator.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)
3.33.168.255

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

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

TXT

13 record(s)
"miypxh298scqvblede/1vongcrkq9/oeoughh2vbc9x2mh20nho/3z28p8u9nwhofjc8k+jvjobhvfiu+hczcg=="
"google-site-verification=WUynPCjuZN4QrTkyPz1tdOrvMXPBLJrDZR2ZSxf1YwU"
"m4qm7zmcvchvnjq8dty07djhlq31vl03"
"facebook-domain-verification=2efvlkoax1veyyf5607puo42d9lthg"
"knowbe4-site-verification=540a2fb1810f874042b6c46918f4fd84"
"v=spf1 include:_includeSPF.erelocation.net include:spf.protection.outlook.com include:_spf.realpage.com include:sendgrid.net include:servers.mcsv.net include:_spf.elasticemail.com ~all"
"pardot1123283=0717e47cf0bd92fcb43be7af8f42fd2c84b4ef1c782f6e07bb515a1c4110d127"
"603wdmd2xm16yr2x466374fkc04wl3kk"
"monday-com-verification=Vzp9M9wkXo140C0DRYV7ojmHp1rlhcE3dD23D45ox_s"
"e1b8ff4711f948b6a053bcd92e174206"
"fpyqgcq0t312t60mm71qb344bdnzcp9g"
"atlassian-domain-verification=VU7xgQiZZa3avZ4LTJOsUdMn6RqZi0eGbU3Dk4MSPmi12S6yFEvEh/I8tLFNxlcr"
"_globalsign-domain-verification=6GywlC8PVV6mLfL6ToMeVqCDeqFk9IDu2uEqmYPqx3"

NS

4 record(s)
ns-1727.awsdns-23.co.uk.
ns-1078.awsdns-06.org.
ns-215.awsdns-26.com.
ns-513.awsdns-00.net.

SOA

1 record(s)
ns-513.awsdns-00.net. 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 include:_includeSPF.erelocation.net include:spf.protection.outlook.com include:_spf.realpage.com include:sendgrid.net include:servers.mcsv.net include:_spf.elasticemail.com ~all

DMARC

Configured
v=DMARC1; p=quarantine; rua=mailto:41b3633887d3342@rep.dmarcanalyzer.com; ruf=mailto:41b3633887d3342@for.dmarcanalyzer.com; fo=1;

DKIM

Selector selector2
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCbbl2RxoxIwdsebmS6xujWPBfm/dkpVHiK/CcmtXXReqQoIx3/6rOWKflTgA5Ge19hZSNpvEOSs/7MWEwop7DLm4i5sMaUE77PUzuLEy3gXvVJDVq6fcahzJNNQZ6hEbarD4LiCFjk+SroDwtM6E5boo76H9SRXG9h81APR2CnaQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Real Estate and Homes for Sale - Coldwell Banker
Description
coldwellbanker.com can help you find homes for sale, realtors, and information about your local real estate market.
Final URL
https://www.coldwellbanker.com/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://www.coldwellbanker.com/
Version
3
Server
awselb/2.0
X-Powered-By
Next.js

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Amazon
CN
coldwellbanker.com
Valid from
2026-05-02T19:00:00-05:00
Valid until
2026-11-16T17:59:59-06:00
Days remaining
97
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

4 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
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
3.33.168.255
73,53 ms
Cloudflare
1.1.1.1
3.33.168.255
52,58 ms
Quad9
9.9.9.9
3.33.168.255
44,96 ms
OpenDNS
208.67.222.222
3.33.168.255
40,05 ms
AdGuard
94.140.14.14
3.33.168.255
168,41 ms

IP, geolocation and ASNAssociated network information

3.33.168.255

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

coldwellbanker-com.mail.protection.outlook.com

Port 25: Closed/unreachable - 30.9 ms - 
Port 465: Closed/unreachable - 4017.8 ms - 
Port 587: Closed/unreachable - 4021.6 ms -

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