musictheory.net
No paid content found
Categories: Other
Introductory and intermediate music theory lessons, exercises, ear trainers, and calculators.
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Updated: 2026-09-24 23:34
Language: English (default)
Access: Normal
Profile views 0
Outbound visits 0
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Website Overview
An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality. Several search or sharing settings need attention. Together they may make snippets, preview images or preferred URLs less consistent across platforms.
Domain and Registration
Registered in 1999, this domain has about 26 years of history. That suggests continuity, although ownership and purpose may have changed. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain uses the common .net extension, which is not an independent safety signal.
DNS and Email
The observed email authentication setup is incomplete: DMARC is missing. Nameservers are provided by linode.com, indicating managed DNS hosting. MX records point to the Fastmail email service. CAA records restrict which certificate authorities are authorized to issue certificates. No CNAME was found; the observed records resolve directly to addresses.
TLS and Certificates
The certificate uses an RSA 2048-bit public key, offering broad client compatibility. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate was issued by Let's Encrypt, commonly associated with automated certificate services. The certificate's total validity is about 89 days, consistent with a short renewal cycle.
HTTP and Browser Security
The response lacks these common security headers: CSP, clickjacking protection. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. No obvious internal addresses or debug information were found in the headers. The Server header identifies nginx without an exact version. No explicit CDN or WAF marker was found in the response headers.
Technology Stack Analysis
The public page identifies nginx without precise versions, leaving fewer clues for version-specific scanning.
Search and Social Sharing
No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. Open Graph is partially configured; og:title is missing. The title has 15 characters, within a common display range. A meta description is present, with 93 characters. No Generator meta tag is publicly exposed.
Hosting and Email
Hosting
Akamai Connected Cloud
Fastmail
Location
Fremont, California, United States
Pages, Search and Sharing
| Meta description | Introductory and intermediate music theory lessons, exercises, ear trainers, and calculators. |
|---|---|
| Canonical URL | Not detected |
| Language | English (default) |
| Twitter Card | Not detected |
Social Sharing Preview
6 fields
Sharing metadata
| og:url | https://www.musictheory.net/ |
|---|---|
| og:type | website |
| og:image | https://www.musictheory.net/vc/26/0/64e93ece5818d5daebdf4a813fbd21cfb8a5f95d/favicon_256.png |
| og:locale | en_US |
| og:site_name | musictheory.net |
| og:description | Introductory and intermediate music theory lessons, exercises, ear trainers, and calculators. |
robots.txt (opens in a new tab)
10 rulesAll bots 0 allowed · 9 disallowed
All bots
/ads/prefs/va/v0/v1/v2/v3/20*//s/
ia_archiver 0 allowed · 1 disallowed
/
No matching rules.
Sitemaps
0No sitemaps found
Registration details RDAP / WHOIS
| Registrar | DreamHost, LLC |
|---|---|
| Registered | 1999-12-31 |
| Expires | 2026-12-31 |
| Domain status | client transfer prohibited |
| Nameservers | ns1.linode.com、ns2.linode.com、ns3.linode.com、ns4.linode.com |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | www.musictheory.net | 66.175.219.138 | 358 | — |
| AAAA | www.musictheory.net | 2600:3c01::f03c:91ff:fe6e:941b | 3600 | — |
| MX | musictheory.net | in1-smtp.messagingengine.com | 3600 | 10 |
| MX | musictheory.net | in2-smtp.messagingengine.com | 3600 | 20 |
| NS | musictheory.net | ns1.linode.com | 3600 | — |
| NS | musictheory.net | ns2.linode.com | 3600 | — |
| NS | musictheory.net | ns3.linode.com | 3600 | — |
| NS | musictheory.net | ns4.linode.com | 3600 | — |
| NS | musictheory.net | ns5.linode.com | 3600 | — |
| TXT | musictheory.net | v=spf1 a mx include:spf.messagingengine.com -all | 3600 | — |
| CAA | musictheory.net | 0 issue "letsencrypt.org" | 3600 | — |
TLS and certificates
| Assessment | Normal configuration |
|---|---|
| Supported protocols | TLSv1.2、TLSv1.3 |
| Negotiated protocol | TLSv1.3 |
| Certificate subject | musictheory.net |
| Issuer | Let's Encrypt |
| Valid until | 2026-12-22T15:13 · Remaining when checked: 88 days |
| Verification details | Certificate trust: Passed · Hostname match: Passed |
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html |
| cache-control | no-cache, max-age=0,must-revalidate |
| server | nginx |
| strict-transport-security | max-age=31536000 |
| x-content-type-options | nosniff |
| referrer-policy | same-origin |
| permissions-policy | interest-cohort=() |
Identified technologies
User reviews (0)