29a.ch


29a.ch Website Info

29a.ch (29a.ch is an online platform dedicated to collaborative mathematics problem solving. It allows users to work together on challenging math problems, share solutions, and engage with a vibrant community of math enthusiasts and students.) DNS looks Active and website looks Accessable. 29a.ch Website SEMRush Rank is 280,039. According to Google, website speed score is 98/100 and AVERAGE. Website looks safe for children. We detected the website language as en.
29a.ch


29a.ch Website Tags

Domain Status:
✓ Active
Is Site Accessable?:
✓ Yes
SSL(https):
✓ Yes
Accessable Url:
Title:
29a.ch - Collaborative Online Math Problem Solving
Description:
29a.ch is an interactive platform where users can collaboratively solve mathematical problems and puzzles, fostering a community-driven approach to problem-solving.
External Links:
35
Internal Links:
66
Mobile Friendly?:
No
PAGE_UNREACHABLE
Canonical URL:
https://29a.ch
Language:
en
XML Sitemap:
✓ Yes
robots.txt:
✗ No
Favicon:
✗ No

29a.ch Domain & Whois Details

Refresh
Server Type:
cloudflare
Hosting Location:
Country:Canada, City:Toronto, Isp:Cloudflare, Inc., Org:Cloudflare, Inc.
IP:
172.67.152.180 , 104.21.80.177

29a.ch Backlinks & Rankings

SEMRush Rank:
280,039
Semrush Rank is a proprietary score that lets you find the domains that are getting the most traffic from organic search.
SEMRush Traffic:
5,087
Number of users expected to visit the website during the following month.
SEMRush Costs:
2,123
Estimated price of organic keywords in Google AdWords.
SEMRush URL Links:
416
Number of links to URL according to SemRush.
SEMRush Website Links:
38,814
Number of links to the website according to SemRush.
SEMRush Domain Links:
41,888
Number of links to SemRush Domain.
SEMRush Keywords In Top 100:
2,612
Number of keywords where site in Google's organic search top 100.


29a.ch Website Speed (Desktop)

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Overall Category:
AVERAGE
The human readable speed "category"
Speed Index:
98
Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric].
Cumulative Layout Shift (CLS):
0 (FAST)
The Cumulative Layout Shift (CLS) metric measures how much unexpected layout shifts affect the user experience on a page. These layout shifts occur when content moves around without prior user input. CLS
Time to First Byte (TTFB):
0.702 s (FAST)
TTFB (time to first byte) is the number of milliseconds it takes for a client’s browser to receive the first byte of the response from the web server. Usually, TTFB can be improved with faster hosting and server optimizations. TTFB
First Input Delay (FID):
4 ms (FAST)
First Input Delay (FID) measures the time from when the user interacts with your site for the first time (click a link, tap on a button, etc.) to the time when the browser is able to respond to that interaction. Google recommends keeping FID below 100ms for a good user experience. FID
First Contentful Paint (FCP):
1.834 s (AVERAGE)
FCP (First Contentful Paint) measures the time from a user’s navigation to when the browser renders the first bit of content from the DOM. In other words, FCP marks the time at which the first text or image is painted for the user. According to PageSpeed Insights, FCP should occur in under 2 seconds. FCP
Interaction to Next Paint (INP):
53 ms (FAST)
Interaction to Next Paint (INP) is a web performance metric that measures user interface responsiveness – how quickly a website responds to user interactions like clicks or key presses. Specifically, it measures how much time elapses between a user interaction like a click or key press and the next time the user sees a visual update on the page. INP
Largest Contentful Paint (LCP):
2.053 s (FAST)
Largest Contentful Paint (LCP) is a metric that measures when the largest content in the viewport is rendered. It is used to measure how long it takes for the main content of your webpage to appear on the screen. Everything below 2.5s is considered good LCP time by PageSpeed Insights. LCP
Total Size:
1032 KB
Total Size. Large network payloads cost users real money and are highly correlated with long load times.
Server Response Time:
396 ms
Initial server response time. Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).
Final Url:
https://29a.ch/
Canonicalized and final URL for the document, after following page redirects (if any).
Last Date Checked:
5/25/2023 8:21:07 PM
The last time we checked this website.

29a.ch HTML Resources

Type
Request Count
Size
Total
20
1,032 KB
Image
11
552 KB
Media
4
386 KB
Stylesheet
1
67 KB
Document
1
15 KB
Script
2
9 KB
Other
1
0 KB
Font
0
0 KB
Third-party
0
0 KB

29a.ch Website Safety

Refresh
Last Check Date:
2/16/2023 7:37:17 AM
Fortiguard:
Information Technology
Mcafee Category:
Technical/Business Forums
OpenDNS:
BeFirst
Cloudflare DNS:
OK
MyWot Child Safety:
91

29a.ch HTTP Headers

Refresh
alt-svc :
h3=":443"; ma=86400, h3-29=":443"; ma=86400
Cache-Control :
max-age=0, s-maxage=7200, no-transform, public, mu
CF-Cache-Status :
REVALIDATED
CF-RAY :
7c6a2f01db6c43e6-EWR
Connection :
keep-alive
Content-Type :
text/html; charset=utf-8
Cross-Origin-Opener-Policy :
same-origin
Cross-Origin-Resource-Policy :
same-origin
Date :
Sat, 13 May 2023 10:23:01 GMT
ETag :
W/"63af0380-3b69"
Last-Modified :
Fri, 30 Dec 2022 15:28:00 GMT
NEL :
{"success_fraction":0,"report_to":"cf-nel","max_ag
Report-To :
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.c
Server :
cloudflare
strict-transport-security :
max-age=63072000; includeSubDomains; preload
Transfer-Encoding :
chunked
Vary :
Accept-Encoding


29a.ch W3C HTML Validation Check Now

Last Check Date:
5/27/2023 12:00:00 AM
Errors:
4
Warnings:
0
Info:
10

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29a.ch Site Keywords

collaborative math
detect image manipulation
forensically
foto forensics
image photoshop detector
Jonas Wagner
Mathematics
online audio player
online problem solving
online sound player
photo forensics
photoshop detector
pitch changer

29a.ch Site H Tags

Check Now
h1
29a.ch by Jonas Wagner
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
I made myself a guitar tuner
h1
Lap Timer and Analyser for GoPro Videos
h1
I made myself a noise generator
h1
Urban Astrophotography
h1
Procedural Lamp Shades for 3D Printing
h2
How it works
h2
3D Printed results
h2
Step by Step
h2
Why this is possible
h2
Settings & Equipment
h2
Conclusions
h2
Further Reading
h2
Data Extraction and Filtering
h2
Lap Map
h2
G-Map
h2
Future Plans
h2
Disclaimer
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
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
Preliminary results
h2
Known issues
h2
Possible future work
h2
The API Change
h2
Tree shaking
h2
A little demo to celebrate
h2
The future
h2
 Experiments
h2
TimeStretch Player
h2
Analog Film Emulator
h2
Forensically
h2
Neonflames
h2
Recent Articles

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