Website Review: flat.io
Generated on November 08 2026 05:45 AM
The score is 74/100
SEO Content
Title
Music Notation Software for Web, Desktop & Mobile – Flat
Length : 56
Great, your title tag's length is between 40 and 70 characters. Title tag length between 50 and 70 characters is optimal for SEO.
Description
Flat is intuitive music notation software for Mac, Windows, web, iOS & Android. Compose, collaborate, play & print sheet music from any device.
Length : 143
Great, your meta description tag's length is between 90 and 160 characters. A description tag of 155 to 160 characters is optimal.
Keywords
Not good (but low priority). We haven't found a meta keywords tag on your page. You can add a meta keywords tag to the page's <head> with our free meta tag generator.
Og Meta Properties
Good, your page takes advantage of Open Graph Properties. Open Graph properties can help with indexing.
| Property | Content |
|---|---|
| site_name | Flat |
| logo | /icons/icon.svg |
| url | https://flat.io |
| locale | en_US |
| locale:alternate | zh_HK |
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 8 | 24 | 5 | 0 | 0 |
- [H1] Create sheet music on any device
- [H2] Compose with high-quality instruments
- [H2] Your music scores, always in sync
- [H2] Explore music
- [H2] Join our 6M+ community
- [H2] Flat Power: to take your music further
- [H2] Why musicians choose Flat
- [H2] FAQs
- [H2] Create your scores on any device
- [H3] Intuitive music writing
- [H3] Complete music notation suite
- [H3] Collaboration in real time
- [H3] +0M
- [H3] +0M
- [H3] +0K
- [H3] Unlimited scores
- [H3] Customizable layouts, styles, and templates
- [H3] 180+ instruments, including HQ studio instruments
- [H3] Compose offline
- [H3] Advanced Playback
- [H3] YouTube, SoundCloud, and MP3 audio uploads
- [H3] Will Strassberger
- [H3] Doug
- [H3] Frank De Leon III
- [H3] Gideon Waxman
- [H3] Dallin Attwooll
- [H3] David Dariza
- [H3] Jonathan E. Stewart
- [H3] 1. What is Flat music notation software?
- [H3] 2. Can I create sheet music online without installing software?
- [H3] 3. How do I collaborate with others on a music score in Flat?
- [H3] 4. Is Flat free to use, and what are the paid features?
- [H3] 5. What instruments does Flat support?
- [H4] Grand Piano HQ
- [H4] Drums
- [H4] Trumpet
- [H4] Violin HQ
- [H4] Guitar
Images
We found 46 images on this web page.
5 image alt attributes were missing. Please add alt text to all images to help search engines better understand the content of your images.
Text/HTML Ratio
Ratio : 5%
This page's ratio of text to HTML code is below 20 percent, this means that your website probably needs more text content in order to do well in search engines. Note: This may also result from a false reading due to your server blocking external scripts from accessing the home page.
Iframe
Awesome, there are no Iframes found on this page.
SEO Links
URL Rewrite
Good. Your links look SEO friendly and are easy to crawl!
Underscores in the URLs
Great! No underscores found in your URLs.
In-page links
We found a total of 40 links including 0 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| Skip to content | Internal | Passing Juice |
| Help Center | Internal | Passing Juice |
| Blog | Internal | Passing Juice |
| Product Updates | Internal | Passing Juice |
| Video Tutorials | Internal | Passing Juice |
| Discover the community | Internal | Passing Juice |
| Monthly challenge | Internal | Passing Juice |
| Flat | Internal | Passing Juice |
| Flat for Education | Internal | Passing Juice |
| Music Snippet | External | Passing Juice |
| Embed | Internal | Passing Juice |
| Flat | Internal | Passing Juice |
| App Store | External | Passing Juice |
| Google Play | External | Passing Juice |
| here | Internal | Passing Juice |
| Learn more. | Internal | Passing Juice |
| here | Internal | Passing Juice |
| here | Internal | Passing Juice |
| Product Overview | Internal | Passing Juice |
| Real-time Collaboration | Internal | Passing Juice |
| High-Quality Instruments | Internal | Passing Juice |
| Complete History | Internal | Passing Juice |
| Guitar Tab Editor | Internal | Passing Juice |
| PDF Import | Internal | Passing Juice |
| Desktop app | Internal | Passing Juice |
| Pricing | Internal | Passing Juice |
| Gift Card | Internal | Passing Juice |
| Recent | Internal | Passing Juice |
| Featured | Internal | Passing Juice |
| Help | Internal | Passing Juice |
| FAQ | Internal | Passing Juice |
| Privacy Policy | Internal | Passing Juice |
| Developers / APIs | Internal | Passing Juice |
| Flat | Internal | Passing Juice |
| Flat for Education | Internal | Passing Juice |
| Opuscan | External | Passing Juice |
| Embed | Internal | Passing Juice |
| About | External | Passing Juice |
| Careers | External | Passing Juice |
| Affiliate | Internal | Passing Juice |
SEO Keywords
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| flat | 31 |  |
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| music | 28 | |
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| notation | 9 | |
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| instruments | 9 | |
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| create | 8 | |
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Usability
Url
Domain : flat.io
Length : 7
Favicon
Great, your website has a favicon.
Language
Good. Your declared language is en.
Document
Doctype
HTML 5
Encoding
Great. Your declared charset is UTF-8.
Email Privacy
Warning! At least one email address has been found in plain text. Consider using an image or a form to hide email from spammers.
Deprecated HTML
Great! We haven't found deprecated HTML tags in your HTML.
Speed Tips
|
Not great, your website is using inline styles. This is not optimal. |
|
Great, your website has few CSS files. |
|
Perfect, your website has few JavaScript files. |
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Awesome, your website takes advantage of GZIP compression for SEO optimization. |
Mobile
Mobile Optimization
|
Apple Icon |
|
Meta Viewport Tag |
Optimization
XML Sitemap
Great, your website has an XML sitemap.
| https://flat.io/sitemap_index.xml |
| https://flat.io/developers/docs/sitemap.xml |
| https://flat.io/sitemaps/scores.xml |
| https://flat.io/sitemaps/profiles.xml |
Robots.txt
http://flat.io/robots.txt
Great, your website has a robots.txt file.
Analytics
Missing
Unverified
AI Search Readiness
AI Crawlers
AI search crawlers are allowed, so the site can be shown and cited in AI answers (ChatGPT, Claude, Perplexity).
|
OAI-SearchBot | ChatGPT search | AI search |
|
ChatGPT-User | ChatGPT (user requests) | AI search |
|
Claude-SearchBot | Claude search | AI search |
|
Claude-User | Claude (user requests) | AI search |
|
PerplexityBot | Perplexity | AI search |
|
GPTBot | OpenAI training | AI training |
|
ClaudeBot | Anthropic training | AI training |
|
Google-Extended | Google Gemini training | AI training |
|
Applebot-Extended | Apple AI training | AI training |
|
CCBot | Common Crawl | AI training |
Blocking AI training crawlers is a common choice and doesn't affect the score. Only the AI search crawlers count.
Structured Data
The homepage describes itself with schema.org structured data, which helps search engines and AI tools understand it: WebSite, SearchAction, Organization, SoftwareApplication, Offer, MobileApplication
Canonical Tag
The homepage has a canonical tag, which tells search engines which URL is the main version of the page.
llms.txt
No llms.txt file. It's an emerging convention: a short Markdown summary of the site for AI tools. Optional, so it doesn't affect the score.
Security
HTTPS
The site loads over HTTPS, so connections are encrypted. Browsers and search engines expect this.
HSTS
No Strict-Transport-Security (HSTS) header. It tells browsers to always use HTTPS, which protects visitors from being downgraded to an insecure connection.
Security Headers
1 of 5 common security headers found. At least 2 are needed to pass.
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Content-Security-Policy |
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X-Content-Type-Options |
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X-Frame-Options |
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Referrer-Policy |
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Permissions-Policy |
Domain Info
flat.io accepts email and has both SPF and DMARC records. The Wayback Machine first archived it in July 2013.
Hosting
| IPv4 address | 144.126.249.236 |
|
IPv6 support |
Email Security
Mail servers: aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, aspmx3.googlemail.com, aspmx2.googlemail.com
|
SPF record |
|
DMARC record (policy: reject) |
Archive History
The Wayback Machine has snapshots of this site from 121 different months, from July 2013 to October 2026. View snapshots
PageSpeed Insights
Device
Categories
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