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catmaid.readthedocs.io screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

catmaid.readthedocs.io

Welcome to CATMAID — CATMAID 2021.12.21 documentation

Page Load Speed

1.8 sec in total

First Response

77 ms

Resources Loaded

1.3 sec

Page Rendered

464 ms

catmaid.readthedocs.io screenshot

About Website

Visit catmaid.readthedocs.io now to see the best up-to-date CATMAID Readthedocs content for China and also check out these interesting facts you probably never knew about catmaid.readthedocs.io

The Collaborative Annotation Toolkit for Massive Amounts of Image Data. Used for image viewing, neuron reconstruction, ontology based annotations and more.

Visit catmaid.readthedocs.io

Key Findings

We analyzed Catmaid.readthedocs.io page load time and found that the first response time was 77 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

catmaid.readthedocs.io performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

77 ms

jinja.css

322 ms

pygments.css

175 ms

lightbox.css

193 ms

badge_only.css

43 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 77% of them (30 requests) were addressed to the original Catmaid.readthedocs.io, 10% (4 requests) were made to Assets.readthedocs.org and 5% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (466 ms) belongs to the original domain Catmaid.readthedocs.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.5 kB (0%)

Content Size

4.5 MB

After Optimization

4.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Catmaid.readthedocs.io main page is 4.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 4.4 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 13.4 kB

  • Original 17.5 kB
  • After minification 16.8 kB
  • After compression 4.1 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 13.4 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 4.4 MB
  • After minification 4.4 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. CATMAID Readthedocs images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 4.7 kB

  • Original 104.4 kB
  • After minification 104.4 kB
  • After compression 99.7 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-23%

Potential reduce by 2.4 kB

  • Original 10.4 kB
  • After minification 10.4 kB
  • After compression 8.0 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Catmaid.readthedocs.io needs all CSS files to be minified and compressed as it can save up to 2.4 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (50%)

Requests Now

36

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CATMAID Readthedocs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

77 ms

jinja.css

jinja.css

322 ms

pygments.css

pygments.css

175 ms

lightbox.css

lightbox.css

193 ms

badge_only.css

badge_only.css

43 ms

style.css

style.css

222 ms

main.css

main.css

218 ms

documentation_options.js

documentation_options.js

85 ms

jquery.js

jquery.js

263 ms

underscore.js

underscore.js

319 ms

doctools.js

doctools.js

267 ms

language_data.js

language_data.js

412 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

382 ms

lightbox.min.js

lightbox.min.js

422 ms

jquery-noconflict.js

jquery-noconflict.js

446 ms

readthedocs-doc-embed.js

readthedocs-doc-embed.js

61 ms

readthedocs-doc-embed.css

readthedocs-doc-embed.css

78 ms

readthedocs-analytics.js

readthedocs-analytics.js

68 ms

css

css

21 ms

basic.css

basic.css

188 ms

close.png

close.png

154 ms

loading.gif

loading.gif

145 ms

prev.png

prev.png

141 ms

next.png

next.png

171 ms

catmaid-screenshot-workplace-2.jpeg

catmaid-screenshot-workplace-2.jpeg

180 ms

catmaid-screenshot-workplace.jpeg

catmaid-screenshot-workplace.jpeg

146 ms

ui-tracing.jpg

ui-tracing.jpg

274 ms

ui-ortho-views.jpg

ui-ortho-views.jpg

299 ms

catmaid-selector-tool-mouse-mirror.png

catmaid-selector-tool-mouse-mirror.png

308 ms

volumes-alpha-shape-setup.png

volumes-alpha-shape-setup.png

228 ms

fafb-catmaid-tracing-screenshot.png

fafb-catmaid-tracing-screenshot.png

371 ms

catmaid-graph-dendrogram.png

catmaid-graph-dendrogram.png

378 ms

catmaid-onto.png

catmaid-onto.png

466 ms

api.png

api.png

429 ms

catmaidlogo.png

catmaidlogo.png

448 ms

js

js

62 ms

ga.js

ga.js

25 ms

wlp2gwHKFkZgtmSR3NB0oRJfbwhW.ttf

wlp2gwHKFkZgtmSR3NB0oRJfbwhW.ttf

29 ms

__utm.gif

__utm.gif

17 ms

Accessibility Review

catmaid.readthedocs.io accessibility score

97

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best Practices

catmaid.readthedocs.io best practices score

50

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

catmaid.readthedocs.io SEO score

71

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Catmaid.readthedocs.io can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Catmaid.readthedocs.io main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

catmaid.readthedocs.io

Open Graph description is not detected on the main page of CATMAID Readthedocs. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: