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85
Total
75
DNS
90
Email
84
Security
65
Network
100
Availability
Domainteamtreehouse.com
IPv42
IPv60
MX records5
StatusActive
Domain technical report

Learn to Code Online with Treehouse | Guided Courses & Techdegree Bootcamps

teamtreehouse.com

Treehouse offers structured coding courses and Techdegree bootcamps in JavaScript, Python, HTML, CSS, AI, and more. Try 7 days free, then $25/month.

Generated: 2026-08-10T08:27:53-05:00 · Cached result

JSONCSVPDFVisit site
IPv42
IPv60
MX5
NS4

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

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 policy5 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

5 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

82 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: ec2-34-193-234-175.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

2 record(s)
34.193.234.175
18.206.116.173

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

5 record(s)
10 aspmx.l.google.com.
40 aspmx3.googlemail.com.
20 alt2.aspmx.l.google.com.
30 aspmx2.googlemail.com.
20 alt1.aspmx.l.google.com.

TXT

3 record(s)
"v=spf1 include:_spf.google.com include:helpscoutemail.com include:servers.mcsv.net include:spf.mandrillapp.com include:zoho.com ip4:142.0.160.50/32 include:7320745.spf10.hubspotemail.net exists:%{i}._spf.mta.salesforce.com -all"
"google-site-verification=gry2OoAsXMeGRyLmhhndx2c5TxFbvCqzUXR66_ZYMpc"
"google-site-verification=0W3EHt8wRzgBZUT4_w_NwM50y4aNtXUIa95yEkB7hbg"

NS

4 record(s)
ns-1233.awsdns-26.org.
ns-1567.awsdns-03.co.uk.
ns-1004.awsdns-61.net.
ns-334.awsdns-41.com.

SOA

1 record(s)
ns-334.awsdns-41.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400

CAA

10 record(s)
0 issue "digicert.com"
0 issue "amazonaws.com"
0 issue "globalsign.com"
0 issue "awstrust.com"
0 issue "amazon.com"
0 issue "sectigo.com"
0 issue "letsencrypt.org"
0 issue "amazontrust.com"
0 iodef "mailto:site-ops@teamtreehouse.com"
0 issue "pki.goog"

DS

0 record(s)
—

Not configured

DNSKEY

3 record(s)
256 3 13 qDSNP9i6H+Iimn8CfLVp1WPVJ1wp+oIa+lBoB4LCWzPWGq4adTA0b4WI p6fsCN5t95iIdfMzzNK1+ZE541cusA==
257 3 13 yR4cAW17jj1vULYZ3Y+ayAKFfA0i5LdNLFiVS8MdI13eixSmsGxQFH5G j3oR4rHNSv7cyRyu1eQIf5Vz5LNWaQ==
256 3 13 LRuzsDEqG/jAqn4sQnrr+Lxcw/Q2xIhEZ6oLnwjf4MfiXcj63liKvXEf 80Ef9SPy+HW3cHmCjmzL1wehsm7Vng==

RRSIG

2 record(s)
NS 13 2 172800 20260812142742 20260810122742 61606 teamtreehouse.com. 5EH5BOehilu7eE0wNHRlJFakabf9kc+u3a/k0EIW5vaTo0K+XgAJTLIZ Y25S91EYqXKbpXIfoKhf4m69FXIicA==
CAA 13 2 300 20260810143242 20260810122742 61606 teamtreehouse.com. L+TreC6D9dwXk6OMx38Xf5VSBqDsTDddSm2PMuS3QhXYcmfRqxkVUeXQ kAlg9Q8MWj/qdmOkNaYBSTBvS1exRQ==

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:_spf.google.com include:helpscoutemail.com include:servers.mcsv.net include:spf.mandrillapp.com include:zoho.com ip4:142.0.160.50/32 include:7320745.spf10.hubspotemail.net exists:%{i}._spf.mta.salesforce.com -all

DMARC

Configured
v=DMARC1; p=reject; pct=100; rua=mailto:dmarc-agg@teamtreehouse.com,mailto:dmarc_agg@vali.email; ruf=mailto:dmarc-for@teamtreehouse.com; rf=afrf; fo=1; ri=86400; adkim=r; aspf=r;

DKIM

Selector google
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvL83UOnKFEUyLqFm3/JoFCnBGU2Lu85Nj0qTsbei5313ng6w53P3KXioJHwlgoc+Z9JqqYVopICDkBRQcyryEbW8hQ94QBA4TTvBFJYmPAbyojidXZu97w6BWuN6NhPTd8N0a3OcecN4e2w5sehchuw718Z2wfmv5xuHgbcOj8w4RM/fuXkQG7c4afiFuScZ0HVWYCqQ1Rvx3E1TSkBSEkNE4+2wUc/bC8GkfjHIUs1TO0gVuKct+XS1qIjdH6/1BSZntr9RIZPlJQJhNIsC2gArdiHTTBoyrvZQ2tQKp8cCbOch5P5PxTei9FxyZD7YuqKlVvl3giE4MGWFvnqz3wIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Learn to Code Online with Treehouse | Guided Courses & Techdegree Bootcamps
Description
Treehouse offers structured coding courses and Techdegree bootcamps in JavaScript, Python, HTML, CSS, AI, and more. Try 7 days free, then $25/month.
Final URL
https://teamtreehouse.com/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://teamtreehouse.com/
Version
3
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Amazon
CN
teamtreehouse.com
Valid from
2026-04-16T19:00:00-05:00
Valid until
2026-10-31T18:59:59-05:00
Days remaining
82
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

5 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
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
18.206.116.173, 34.193.234.175
59,59 ms
Cloudflare
1.1.1.1
18.206.116.173, 34.193.234.175
59,07 ms
Quad9
9.9.9.9
18.206.116.173, 34.193.234.175
43,36 ms
OpenDNS
208.67.222.222
18.206.116.173, 34.193.234.175
81,72 ms
AdGuard
94.140.14.14
18.206.116.173, 34.193.234.175
56,56 ms

IP, geolocation and ASNAssociated network information

34.193.234.175

No data
success
No
country
region
city
asn
organization
isp

18.206.116.173

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

aspmx.l.google.com

Port 25: Closed/unreachable - 21.8 ms - 220 mx.google.com ESMTP 586e51a60fabf-459f1f68310si7895750fac.129 - gsmtp
Port 465: Closed/unreachable - 4020.8 ms - 
Port 587: Closed/unreachable - 4019.9 ms -

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