Website review plotboilerplate.io
Plotboilerplate.js
Generated on February 14 2026 01:12 AM
Old data? UPDATE !
The score is 56/100
SEO Content
Title
Plotboilerplate.js
Length : 18
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Description
A lightweight html5/javascript/canvas plotting boilerplate library: plotboilerplate.js.
Length : 87
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Keywords
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Og Meta Properties
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| Property | Content |
|---|---|
| title | Plotboilerplage.js – Plot 2D stuff on SVG or Canvas. |
| description | A lightweight html5/javascript/canvas plotting boilerplate library: plotboilerplate.js. |
| type | website |
| url | https://plotboilerplate.io/ |
| image | https://plotboilerplate.io/repo/logo-128.png |
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 15 | 6 | 2 | 0 | 0 |
- [H1] An interactive Javascript Plotting Boilerplate#
- [H2] Install the package via npm#
- [H2] The HTML file#
- [H2] The javascript#
- [H2] Add elements to your canvas#
- [H2] Screenshot#
- [H2] Examples and Demos#
- [H2] Initialization parameters#
- [H2] Events#
- [H2] Mouse, Keyboard and Touch interaction#
- [H2] Custom keyboard events#
- [H2] Custom mouse event#
- [H2] Build the package#
- [H2] Browsers support#
- [H2] Todos#
- [H2] Known bugs#
- [H3] Alternative with SVG elements#
- [H3] Typescript#
- [H3] Codepen Demos#
- [H3] Screenshot#
- [H3] The e.params object#
- [H3] Credits#
- [H4] API#
- [H4] Example#
Images
We found 9 images on this web page.
2 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 : 20%
Good, this page's ratio of text to HTML code is higher than 15, but lower than 25 percent.
Flash
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Iframe
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SEO Links
URL Rewrite
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Underscores in the URLs
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In-page links
We found a total of 115 links including 10 link(s) to files
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| main-dist.html | External | Passing Juice |
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| Getting Started click here | External | Passing Juice |
| Usage with Typescript is here | External | Passing Juice |
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| Basic Setup in a Codepen.io demo | External | Passing Juice |
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| API Documentation | Internal | Passing Juice |
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| Full list of supported key codes | External | Passing Juice |
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| Compile and build howto | External | Passing Juice |
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| Ray Casting Algorithm | External | Passing Juice |
| Hobby Curves in Javascript | External | Passing Juice |
| Prof. Dr. Edmund Weitz | External | Passing Juice |
| hobby.pdf | External | Passing Juice |
| jsHobby | External | Passing Juice |
| Blake Bowen’s Catmull-Rom demo | External | Passing Juice |
| mbostock | External | Passing Juice |
| convex-polygon-incircle implementation | External | Passing Juice |
| circle-tangent-to-three-lines | External | Passing Juice |
| Circle Intersection in C++ by Robert King | External | Passing Juice |
| The ‘Circles and spheres’ article by Paul Bourke | External | Passing Juice |
| shamansir/draw_svg.js | External | Passing Juice |
| opsb’s stackoverflow proposal | External | Passing Juice |
| contrast-color-algorithm | External | Passing Juice |
| Peter James Lu | External | Passing Juice |
| Paul Steinhardt | External | Passing Juice |
| Girih patterns | External | Passing Juice |
| Girih texture | External | Passing Juice |
| Mapbox’s Earcut polygon algorithm | External | Passing Juice |
| Rosetta-Code for the Sutherland-Hodgman convex polygon clipping algorithm | External | Passing Juice |
| Jos de Jong | External | Passing Juice |
| math.js library | External | Passing Juice |
| howto-module-tutorial | External | Passing Juice |
| vertex-on-ellipse equations | External | Passing Juice |
| Tim Čas | External | Passing Juice |
| wrapMax/wrapMinMax functions | External | Passing Juice |
| Ellipse to cubic Bézier math | External | Passing Juice |
| equidistant points on ellipse math | External | Passing Juice |
| Torben Jansen | External | Passing Juice |
| SVG-Arc to elliptic-sector conversion | External | Passing Juice |
| 3daddict | External | Passing Juice |
| js-stl-parser inspiration | External | Passing Juice |
| jburkardt | External | Passing Juice |
| @veltman | External | Passing Juice |
| geometric skeletonization article | External | Passing Juice |
| girih-tiles-spatial.jpg from Lund University, Architecture, Spatial Experiments, 2016. | External | Passing Juice |
| Josh Frank’s regular expression for parsing SVG path data. | External | Passing Juice |
| Rick Moore for the useful javascript-synthesizer howto | External | Passing Juice |
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| Interactive Visualization of Molecular Surface Dynamics | External | Passing Juice |
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| A Survey of Polygon Offseting Strategies | External | Passing Juice |
| http://mysite.verizon.net/res148h4j/javascript/script_exact_cubic.html | External | Passing Juice |
| Computing Intersections Between a Cubic Bezier Curve and a Line | External | Passing Juice |
| Bezier Area | External | Passing Juice |
| Cuixiping | External | Passing Juice |
| Stackoverflow | External | Passing Juice |
| https://css-tricks.com/multi-thumb-sliders-particular-two-thumb-case/ | External | Passing Juice |
| https://stackoverflow.com/questions/20215440/parse-css-gradient-rule-with-javascript-regex | External | Passing Juice |
| https://github.com/MethanePowered/PerlinNoise) | External | Passing Juice |
| # | Internal | Passing Juice |
| What needs to be done | External | Passing Juice |
| # | Internal | Passing Juice |
| Plotboilerplate.js | Internal | Passing Juice |
| Hugo | External | Passing Juice |
| PaperMod | External | Passing Juice |
| DSGVO & Legal | Internal | Passing Juice |
SEO Keywords
Keywords Cloud
mouse true example svg function canvas boolean event console log
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
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| true | 31 |  |
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| function | 28 | |
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| canvas | 28 | |
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| boolean | 19 | |
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| log | 19 | |
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Usability
Url
Domain : plotboilerplate.io
Length : 18
Favicon
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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.
Document
Doctype
HTML 5
Encoding
Perfect. Your declared charset is UTF-8.
W3C Validity
Errors : 0
Warnings : 0
Email Privacy
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Deprecated HTML
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Speed Tips
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Attention! Try to avoid nested tables in HTML. |
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Too bad, your website is using inline styles. |
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Great, your website has few CSS files. |
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Perfect, your website has few JavaScript files. |
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Perfect, your website takes advantage of gzip. |
Mobile
Mobile Optimization
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Apple Icon |
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Meta Viewport Tag |
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Flash content |
Optimization
XML Sitemap
Great, your website has an XML sitemap.
| https://plotboilerplate.io/sitemap.xml |
Robots.txt
https://plotboilerplate.io/robots.txt
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Analytics
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PageSpeed Insights
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