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76
Total
70
DNS
90
Email
73
Security
20
Network
100
Availability
Domainlumenlearning.com
IPv41
IPv60
MX records5
StatusActive
Domain technical report

Lumen Learning | Online Materials & Resources for Higher Ed

lumenlearning.com

Lumen Learning offers affordable digital courseware & professional development resources to enhance effective teaching and increase student success.

Generated: 2026-08-09T18:02:51-05:00 · Cached result

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IPv41
IPv60
MX5
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

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

38 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 DNS0 / 30 pts · Network

PTR not detected.

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)
151.101.130.159

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

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

TXT

3 record(s)
"v=spf1 include:_spf.google.com include:sendgrid.net include:1885735.spf05.hubspotemail.net ~all"
"tfdvfvy8wps0nwmgy6w96bqh3nst44sk"
"nh7sty3xwf38qd65s506tq5nq67bf81s"

NS

4 record(s)
ns-827.awsdns-39.net.
ns-1376.awsdns-44.org.
ns-1751.awsdns-26.co.uk.
ns-103.awsdns-12.com.

SOA

1 record(s)
ns-827.awsdns-39.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:_spf.google.com include:sendgrid.net include:1885735.spf05.hubspotemail.net ~all

DMARC

Configured
v=DMARC1; p=none; rua=mailto:dmarc-reports@lumenlearning.com; adkim=r; aspf=r;

DKIM

Selector google
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAg9y2RW732w/4HMKaxXZju4fTPNKtN1ZE6gdbPJoEodwMRPMxfaeaAb1tqCfbvXJgcZ/gkJGdie0A3oiTSpSAf9Dc2zM6PvpMzMHDrJ7mcySvJhv6KbaLsQYIOeqgyWHoxmfMrUhTKnGWQeVbYvK4MDXhlktkL3v1TcJZDPvJ3vv3BY6Fk/hDCZfyGgx7lAwLES4QsYtsyoGQT/B9ixCy8Fwbiop2I9VqzrBgdd/fTDmMiIuTikPniRk6TTdfG5UUUbbSB5hWakFGT0tZJW2dxCDmxKByHTRkRi0rVGPZfzanrTVbA7DtNaIQ3pil52im/Ye0ce4bnAkvnRjaRv2+9QIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Lumen Learning | Online Materials & Resources for Higher Ed
Description
Lumen Learning offers affordable digital courseware & professional development resources to enhance effective teaching and increase student success.
Final URL
https://lumenlearning.com/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://lumenlearning.com/
Version
3
Server
Flywheel/5.1.0
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
lumenlearning.com
Valid from
2026-06-19T10:02:21-05:00
Valid until
2026-09-17T10:02:20-05:00
Days remaining
38
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

2 active
—
HSTSNot detected
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
—
X-Frame-OptionsNot detected
✓
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
151.101.130.159
72,66 ms
Cloudflare
1.1.1.1
151.101.130.159
57,18 ms
Quad9
9.9.9.9
151.101.130.159
59,39 ms
OpenDNS
208.67.222.222
151.101.130.159
104,13 ms
AdGuard
94.140.14.14
151.101.130.159
60,61 ms

IP, geolocation and ASNAssociated network information

151.101.130.159

Identified
success
Yes
country
United States
country_code
US
region
California
city
San Francisco
latitude
37.7749113
longitude
-122.4185412
asn
54113
organization
Fastly, Inc.
isp
Fastly, Inc.
timezone
America/Los_Angeles

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

aspmx3.googlemail.com

Port 25: Closed/unreachable - 23.6 ms - 
Port 465: Closed/unreachable - 4001.3 ms - 
Port 587: Closed/unreachable - 4021.3 ms -

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