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76
Total
85
DNS
90
Email
65
Security
85
Network
60
Availability
Domainlynda.com
IPv41
IPv61
MX records4
StatusActive
Domain technical report

LinkedIn Learning: Online Training Courses & Skill Building

lynda.com

Accelerate skills & career development for yourself or your team | Business, AI, tech, & creative skills | Find your LinkedIn Learning plan today.

Generated: 2026-08-09T08:01:40-05:00 · Cached result

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IPv41
IPv61
MX4
NS8

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

8 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

4 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

110 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: 14.32.211.130.bc.googleusercontent.com

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓
IPv6 connectivity35 / 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)
130.211.32.14

AAAA

1 record(s)
2600:1901:0:d5ad::

CNAME

0 record(s)
—

Not configured

MX

4 record(s)
10 mail-a.linkedin.com.
15 mail-c.linkedin.com.
15 mail-d.linkedin.com.
20 mail.linkedin.com.

TXT

6 record(s)
"_xqfeq9o3rn2e8qlraki47908h5c9mf1"
"MS=ms56649312"
"v=spf1 ip4:216.84.189.0/24 ip4:64.18.0.0/20 ip4:91.143.106.55 ip4:107.21.2.3 a:zgateway.zuora.com include:_spf.google.com include:mktomail.com include:_spf1.lynda.com include:linkedin.com ~all"
"google-site-verification=otgwTIY9F-b-FfbfbUI2VALTkgGcwyo7qhoj6vzSDIA"
"MS=ms48400913"
"wz2pkrghvpwld0jlvm13jqlqxqjtq6bn"

NS

8 record(s)
ns1-42.azure-dns.com.
dns4.p09.nsone.net.
dns1.p09.nsone.net.
ns3-42.azure-dns.org.
ns2-42.azure-dns.net.
ns4-42.azure-dns.info.
dns2.p09.nsone.net.
dns3.p09.nsone.net.

SOA

1 record(s)
dns1.p09.nsone.net. hostmaster.linkedin.com. 1653609938 3600 600 604800 60

CAA

1 record(s)
0 contactemail "caarecordaware@microsoft.com"

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 ip4:216.84.189.0/24 ip4:64.18.0.0/20 ip4:91.143.106.55 ip4:107.21.2.3 a:zgateway.zuora.com include:_spf.google.com include:mktomail.com include:_spf1.lynda.com include:linkedin.com ~all

DMARC

Configured
v=DMARC1; p=reject; rua=mailto:linkedin@rua.agari.com; ruf=mailto:linkedin@ruf.agari.com

DKIM

Selector google
v=DKIM1;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDS1/mAqwLf9VpUAvDrk+R+FajMhHP5UtQuEvAkvzs6lP3/yeEL/T74pO+k2urEjubc0f5axgNy4xnsKYu/5iJAZyvk+bH8+g+fA6XoC6bGETs10oXFSZFj34ovOxSNTPsySqd00uyY4rRoglt3KFIv3eAwjbBZYE/LEeo+xwmXMQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
LinkedIn Learning: Online Training Courses & Skill Building
Description
Accelerate skills & career development for yourself or your team | Business, AI, tech, & creative skills | Find your LinkedIn Learning plan today.
Final URL
https://www.linkedin.com/learning/?trk=lynda_redirect_learning
HTTP status
200

HTTP

Status
HTTP/2 403
Final URL
https://lynda.com/
Version
3
Server
Play
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert Inc
CN
lynda.com
Valid from
2026-05-26T19:00:00-05:00
Valid until
2026-11-27T17:59:59-06:00
Days remaining
110
Protocol
TLSv1.3
Cipher
TLS_AES_256_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
130.211.32.14
60,83 ms
Cloudflare
1.1.1.1
130.211.32.14
60,42 ms
Quad9
9.9.9.9
130.211.32.14
74,13 ms
OpenDNS
208.67.222.222
130.211.32.14
53,60 ms
AdGuard
94.140.14.14
130.211.32.14
225,50 ms

IP, geolocation and ASNAssociated network information

130.211.32.14

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

mail-a.linkedin.com

Port 25: Closed/unreachable - 1.3 ms - 
Port 465: Closed/unreachable - 4025.1 ms - 
Port 587: Closed/unreachable - 4021.2 ms -

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