29a.ch

Website review 29a.ch

 Generated on March 01 2026 09:35 AM

Old data? UPDATE !

The score is 57/100

SEO Content

Title

Jonas Wagner - 29a.ch

Length : 21

Perfect, your title contains between 10 and 70 characters.

Description

29a.ch is the personal website of Jonas Wagner.

Length : 47

Ideally, your meta description should contain between 70 and 160 characters (spaces included). Use this free tool to calculate text length.

Keywords

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Og Meta Properties

Good, your page take advantage of Og Properties.

Property Content
title Jonas Wagner
url http://29a.ch/
type website
site_name 29a.ch by Jonas Wagner

Headings

H1 H2 H3 H4 H5 H6
9 43 0 0 0 0
  • [H1] 29a.ch by Jonas Wagner
  • [H1] C2PA Content Credential Photo Forensics
  • [H1] Impulse Response Creator
  • [H1] Tuning Songs Instead of My Guitar
  • [H1] simplex-noise.js 4.0 & Synthwave Demo
  • [H1] Tool to apply wood textures to 3d prints
  • [H1] Swirly Bokeh Lens Hood - 3D Printed
  • [H1] Procedural Lamp Shades for 3D Printing
  • [H1] I made myself a guitar tuner
  • [H2]  Experiments
  • [H2] TimeStretch Player
  • [H2] Analog Film Emulator
  • [H2] Forensically
  • [H2] Neonflames
  • [H2] Recent Articles
  • [H2] Cryptography & PKI
  • [H2] Privacy and Tracking Concerns
  • [H2] File Sizes
  • [H2] What are impulse responses and convolution reverbs
  • [H2] Capturing Impulse Responses
  • [H2] Sweeping Sines
  • [H2] Deconvolution
  • [H2] Web Implementation
  • [H2] Limitations
  • [H2] Demo
  • [H2] Implementation
  • [H2] Limitations
  • [H2] Why no AI?
  • [H2] Next Steps
  • [H2] The API Change
  • [H2] Tree shaking
  • [H2] A little demo to celebrate
  • [H2] The future
  • [H2] Preliminary results
  • [H2] Known issues
  • [H2] Possible future work
  • [H2] How to get swirly bokeh with a lens hood
  • [H2] 3D printing a swirly bokeh lens hood
  • [H2] Results
  • [H2] Want to make your own?
  • [H2] How it works
  • [H2] 3D Printed results
  • [H2] So what’s in it?
  • [H2] Disclaimer
  • [H2] Going beyond the fourier transform
  • [H2] Auto correlation
  • [H2] Picking a peak
  • [H2] Improving accuracy
  • [H2] Improving reliability
  • [H2] Making it fast
  • [H2] What is left to do
  • [H2] Further reading

Images

We found 28 images on this web page.

1 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 : 67%

Ideal! This page's ratio of text to HTML code is between 25 and 70 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 61 links including 6 link(s) to files

Anchor Type Juice
29a.ch Internal Passing Juice
apps Internal Passing Juice
libs Internal Passing Juice
articles Internal Passing Juice
experiments Internal Passing Juice
about me Internal Passing Juice
C2PA Content Credential Photo Forensics Internal Passing Juice
Forensically Internal Passing Juice
C2PA Javascript library External Passing Juice
contentcredentials.org/verify External Passing Juice
“known certificate list” External Passing Juice
remote manifests External Passing Juice
Content Security Policy External Passing Juice
@contentauth/detector External Passing Juice
Impulse Response Creator Internal Passing Juice
convolution External Passing Juice
linear time-invariant sysyem External Passing Juice
all frequencies at once External Passing Juice
shearing External Passing Juice
Farina, Angelo. (2000). Simultaneous Measurement of Impulse Response and Distortion With a Swept-Sine Technique. External Passing Juice
Wiener Deconvolution External Passing Juice
impulse noise External Passing Juice
Tuning Songs Instead of My Guitar Internal Passing Juice
Timestretch Player Internal Passing Juice
some song External Passing Juice
Fix Tuning Internal Passing Juice
Noll, A. M. (1970). Pitch determination of human speech by the harmonic product spectrum, the harmonic sum spectrum and a maximum likelihood estimate External Passing Juice
rubato External Passing Juice
vite External Passing Juice
wasm-pack External Passing Juice
CREPE External Passing Juice
End-to-End Musical Key Estimation Using a Convolutional Neural Network External Passing Juice
simplex-noise.js 4.0 & Synthwave Demo Internal Passing Juice
simplex-noise.js External Passing Juice
tree shaking External Passing Juice
FBM External Passing Juice
SuperFX Chip External Passing Juice
on github External Passing Juice
Tool to apply wood textures to 3d prints Internal Passing Juice
post on reddit External Passing Juice
fuzzy skin External Passing Juice
three.js External Passing Juice
Polymaker PolyWood External Passing Juice
Swirly Bokeh Lens Hood - 3D Printed Internal Passing Juice
Petzval External Passing Juice
bokeh External Passing Juice
jwagner/swirly-lens-hoods External Passing Juice
Procedural Lamp Shades for 3D Printing Internal Passing Juice
I made myself a guitar tuner Internal Passing Juice
But what is the Fourier Transform? A visual introduction. External Passing Juice
McLeod, Philip & Wyvill, Geoff. (2005). A smarter way to find pitch. External Passing Juice
parabolic interpolation External Passing Juice
McLeod, Philip (2008). Fast, Accurate Pitch Detection Tools for Music Analysis. External Passing Juice
View & search all my articles Internal Passing Juice
Film Emulator Internal Passing Juice
Timestretch Player Internal Passing Juice
Photo Forensics Internal Passing Juice
Neon Flames Internal Passing Juice
jwagner External Passing Juice
Linkedin External Passing Juice
Flickr External Passing Juice

SEO Keywords

Keywords Cloud

signal impulse bit using like also response noise from pitch

Keywords Consistency

Keyword Content Title Keywords Description Headings
using 30
bit 29
impulse 26
from 22
also 21

Usability

Url

Domain : 29a.ch

Length : 6

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.

Document

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.
Perfect, your website has few JavaScript files.
Perfect, your website takes advantage of gzip.

Mobile

Mobile Optimization

Apple Icon
Meta Viewport Tag
Flash content

Optimization

XML Sitemap

Missing

Your website does not have an XML sitemap - this can be problematic.

A sitemap lists URLs that are available for crawling and can include additional information like your site's latest updates, frequency of changes and importance of the URLs. This allows search engines to crawl the site more intelligently.

Robots.txt

http://29a.ch/robots.txt

Great, your website has a robots.txt file.

Analytics

Missing

We didn't detect an analytics tool installed on this website.

Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.

PageSpeed Insights

Device
Categories

Website-SEO-Überprüfung

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