Generated on March 12 2026 20:14 PM
Old data? UPDATE !
The score is 62/100
Title
Espruino - JavaScript for Microcontrollers
Length : 42
Perfect, your title contains between 10 and 70 characters.
Description
JavaScript on a Microcontroller
Length : 31
Ideally, your meta description should contain between 70 and 160 characters (spaces included). Use this free tool to calculate text length.
Keywords
Espruino, Pico, Espruino Pico, Espurino, Espruino WiFi, Puck.js, Puckjs, Puck-js, JavaScript, JS, ARM, Arduino, MCU, STM32, NRF, NRF52, Microcontroller, Embedded
Good, your page contains meta keywords.
Og Meta Properties
This page does not take advantage of Og Properties. This tags allows social crawler's better structurize your page. Use this free og properties generator to create them.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 8 | 10 | 0 | 0 | 0 | 0 |
Images
We found 23 images on this web page.
3 alt attributes are empty or missing. Add alternative text so that search engines can better understand the content of your images.
Text/HTML Ratio
Ratio : 21%
Good, this page's ratio of text to HTML code is higher than 15, but lower than 25 percent.
Flash
Perfect, no Flash content has been detected on this page.
Iframe
Great, there are no Iframes detected on this page.
URL Rewrite
Good. Your links looks friendly!
Underscores in the URLs
Perfect! No underscores detected in your URLs.
In-page links
We found a total of 51 links including 5 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| Espruino | Internal | Passing Juice |
| 🇬🇧 Espruino Shop | Internal | Passing Juice |
| 🌎 Distributors | Internal | Passing Juice |
| Download firmware | Internal | Passing Juice |
| Donate | Internal | Passing Juice |
| Quick Start | Internal | Passing Juice |
| API Reference | Internal | Passing Juice |
| Tutorials & Examples | Internal | Passing Juice |
| Modules | Internal | Passing Juice |
| Tips & Tricks | Internal | Passing Juice |
| Videos | External | Passing Juice |
| Bangle.js 2 | Internal | Passing Juice |
| Bangle.js 1 | Internal | Passing Juice |
| Pixl.js | Internal | Passing Juice |
| Puck.js | Internal | Passing Juice |
| Jolt.js | Internal | Passing Juice |
| Espruino WiFi | Internal | Passing Juice |
| Espruino Pico | Internal | Passing Juice |
| Original Espruino | Internal | Passing Juice |
| MDBT42Q Module | Internal | Passing Juice |
| Other Boards | Internal | Passing Juice |
| Forums | Internal | Passing Juice |
| FAQ | Internal | Passing Juice |
| Troubleshooting | Internal | Passing Juice |
| Bangle.js App Loader | External | Passing Juice |
| Espruino.js App Loader | Internal | Passing Juice |
| Espruino for Business | Internal | Passing Juice |
| Contact Us | Internal | Passing Juice |
| Press Info | Internal | Passing Juice |
| Buy Now! | Internal | Passing Juice |
| Distributors | Internal | Passing Juice |
| Funded on KickStarter | External | Passing Juice |
| Buy Now! | Internal | Passing Juice |
| Distributors | Internal | Passing Juice |
| Making Things Smart | External | Passing Juice |
| Buy Now! (German) | External | Passing Juice |
| Buy Now! | Internal | Passing Juice |
| Buy Now, just $24.95 / £20.00 | Internal | Passing Juice |
| Original | Internal | Passing Juice |
| @Espruino | External | Passing Juice |
| espruino.com | Internal | Passing Juice |
| @NodeRED | External | Passing Juice |
| Fork us on GitHub » | External | Passing Juice |
| Bangle.js | External | Passing Juice |
| Puck.js | External | Passing Juice |
| Pico | External | Passing Juice |
| Original | External | Passing Juice |
| our Web-based IDE | Internal | Passing Juice |
| Try it online | Internal | Passing Juice |
| All news... | Internal | Passing Juice |
| Back to top | Internal | Passing Juice |
Keywords Cloud
get javascript now bluetooth espruino even started buy banglejs just
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| espruino | 13 | ![]() |
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| buy | 8 | ![]() |
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| now | 7 | ![]() |
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| javascript | 6 | ![]() |
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| bluetooth | 5 | ![]() |
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Url
Domain : espruino.com
Length : 12
Favicon
Great, your website has a favicon.
Printability
We could not find a Print-Friendly CSS.
Language
Good. Your declared language is en.
Dublin Core
This page does not take advantage of Dublin Core.
Doctype
HTML 5
Encoding
Perfect. Your declared charset is UTF-8.
W3C Validity
Errors : 0
Warnings : 0
Email Privacy
Great no email address has been found in plain text!
Deprecated HTML
Great! We haven't found deprecated HTML tags in your HTML.
Speed Tips
![]() |
Excellent, your website doesn't use nested tables. |
![]() |
Too bad, your website is using inline styles. |
![]() |
Great, your website has few CSS files. |
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Too bad, your website has too many JS files (more than 6). |
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Perfect, your website takes advantage of gzip. |
Mobile Optimization
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Apple Icon |
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Meta Viewport Tag |
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Flash content |
XML Sitemap
Great, your website has an XML sitemap.
| https://www.espruino.com/sitemap.txt |
Robots.txt
https://espruino.com/robots.txt
Great, your website has a robots.txt file.
Analytics
Great, your website has an analytics tool.
Google Analytics |
Free SEO Testing Tool is a free SEO tool which provides you content analysis of the website.