cjsharp .com
4.22
Results collected 2023-09-07 from https://www.cjsharp.com/
Lighthouse Performance
4.80
- The website is fast.
- Total Blocking Time: 200 ms 4.45
- Cumulative Layout Shift 5.00
- Largest Contentful Paint 5.00
- First Contentful Paint: 1.5 s 4.80
- Speed Index 5.00
- Image elements do not have explicit
width
andheight
1.00 - Page prevented back/forward cache restoration 1.00
- Serve images in next-gen formats: Potential savings of 60 KiB 3.70
- Max Potential First Input Delay: 170 ms 3.80
- Use HTTP/2: 7 requests not served via HTTP/2 3.80
- Time to Interactive: 4.4 s 4.15
- Reduce unused JavaScript: Potential savings of 53 KiB 4.30
- Uses efficient cache policy on static assets: 8 resources found 4.50
- Minimizes main-thread work: 1.7 s 4.75
- JavaScript execution time: 0.7 s 4.90
- All text remains visible during webfont loads 5.00
- Avoid multiple page redirects 5.00
- Avoid serving legacy JavaScript to modern browsers 5.00
- Avoids
document.write()
5.00 - Avoids an excessive DOM size 5.00
- Avoids enormous network payloads 5.00
- Defer offscreen images 5.00
- Efficiently encode images 5.00
- Eliminate render-blocking resources 5.00
- Enable text compression 5.00
- First Meaningful Paint 5.00
- Has a
<meta name="viewport">
tag withwidth
orinitial-scale
5.00 - Initial server response time was short 5.00
- Minify CSS 5.00
- Minify JavaScript 5.00
- Minimize third-party usage 5.00
- Preconnect to required origins 5.00
- Properly size images 5.00
- Reduce unused CSS 5.00
- Remove duplicate modules in JavaScript bundles 5.00
- Use video formats for animated content 5.00
- Uses passive listeners to improve scrolling performance 5.00
- Enable text compression 5.00
Lighthouse SEO
5.00
- The website is really good at SEO!
- Document avoids plugins 5.00
- Document has a
<title>
element 5.00 - Document has a meta description 5.00
- Document has a valid
hreflang
5.00 - Document uses legible font sizes 5.00
- Has a
<meta name="viewport">
tag withwidth
orinitial-scale
5.00 - Image elements have
[alt]
attributes 5.00 - Links are crawlable 5.00
- Links have descriptive text 5.00
- Page has successful HTTP status code 5.00
- Page isn’t blocked from indexing 5.00
- Tap targets are sized appropriately 5.00
Lighthouse Best Practices
5.00
- The website is adhering to good practice according to Google Lighthouse!
- Avoids deprecated APIs 5.00
- Uses HTTPS 5.00
- Allows users to paste into input fields 5.00
- Avoids
unload
event listeners 5.00 - Avoids requesting the geolocation permission on page load 5.00
- Avoids requesting the notification permission on page load 5.00
- Displays images with correct aspect ratio 5.00
- No browser errors logged to the console 5.00
- No issues in the
Issues
panel in Chrome Devtools 5.00 - Page has the HTML doctype 5.00
- Properly defines charset 5.00
- Serves images with appropriate resolution 5.00
- Page has valid source maps 5.00
- Uses HTTPS 5.00
- No issues in the
Issues
panel in Chrome Devtools 5.00 - Allows users to paste into input fields 5.00
- Avoids deprecated APIs 5.00
- Page has the HTML doctype 5.00
W3C HTML
5.00
- No errors in the HTML code.
- Number of grouped error type: 0 5.00
- Number of errors: 0 5.00
Standard Files
2.00
- robots.txt is missing, not allowed to download or has no expected content. 1.00
- Sitemap is not specified in robots.txt 1.00
- RSS subscription found. 5.00
- security.txt is missing. 1.00
Lighthouse A11y
4.85
- The website can be more accessible, but is rather good!
- ARIA IDs are unique 5.00
- Buttons have an accessible name 5.00
- Image elements have
[alt]
attributes 5.00 [aria-*]
attributes are valid and not misspelled 5.00[aria-*]
attributes have valid values 5.00[aria-*]
attributes match their roles 5.00[aria-hidden="true"]
is not present on the document<body>
5.00[user-scalable="no"]
is not used in the<meta name="viewport">
element and the[maximum-scale]
attribute is not less than 5. 5.00- Background and foreground colors have a sufficient contrast ratio 5.00
- Document has a
<title>
element 5.00 - Heading elements are not in a sequentially-descending order 1.00
- Links are distinguishable without relying on color. 5.00
- Links have a discernible name 5.00
- List items (
<li>
) are contained within<ul>
,<ol>
or<menu>
parent elements 5.00 - Lists contain only
<li>
elements and script supporting elements (<script>
and<template>
). 5.00 - No element has a
[tabindex]
value greater than 0 5.00 <html>
element has a[lang]
attribute 5.00<html>
element has a valid value for its[lang]
attribute 5.00[id]
attributes on active, focusable elements are unique 5.00- Image elements have
[alt]
attributes that are redundant text. 1.00
Sitespeed.io
5.00
- The website is really fast! 5.00
- Speedindex: 477 5.00
- Loading time: 0.553 sec
- Number of requests: 48
Yellow Lab Tools
4.85
- The website has good frontend code. 4.85
- Page weight 5.00
- Requests 4.55
- DOM complexity 5.00
- JS complexity 5.00
- Bad JS 5.00
- jQuery 5.00
- CSS complexity 4.75
- Bad CSS 4.10
- Web fonts 5.00
- Server config 4.35
- Number of iframes 5.00
- Total JS execution time 5.00
- DOM access 5.00
- Scroll events bound 5.00
- document.write calls 5.00
- Synchronous Ajax requests 5.00
- Rules count 5.00
- Total weight 5.00
- Image optimization 5.00
- Oversized images 5.00
- Gzip/Brotli compression 5.00
- File minification 5.00
- Requests number 5.00
- Different domains 5.00
- 404 not found 5.00
- Connections closed 5.00
- Identical content 2.00
- Below the fold images 4.55
- Webfonts number 5.00
- Overweighted webfonts 5.00
- WOFF 2 5.00
- HTTP protocols 4.40
- TLS protocols 5.00
- Caching disabled 1.55
- Caching not specified 5.00
- Caching too short 4.00
- TLS protocols 5.00
- IDs duplicated 5.00
- CSS syntax error 5.00
- Gzip/Brotli compression 5.00
- 404 not found 5.00
- TLS protocols 5.00
Pa11y
5.00
- The website do not have any apparent issues with accessibility!
- Number of error type: 0 5.00
- Number of errors: 0 5.00
Integrity & Security
2.75
- Rather poor on user privacy.
- Result generated: 2023-09-06 16:57:41 Etc/UTC (Cached for 24 hours)
- HTTPS by default: is good! 5.00
- HTTP Strict Transport Security HSTS: is ok, with 3 error(s) and 0 warning(s). 3.50
- Content Security Policy: is pretty bad. 1.00
- Reporting CSP Certificate Transparency Network Error Logging: is good! 5.00
- Referrer Policy: is pretty bad. 1.00
- Subresource Integrity SRI: is pretty bad. 1.00
- HTTP headers: is ok, with 1 error(s) and 0 warning(s). 4.50
- Cookies: is ok, with 12 error(s) and 0 warning(s). 1.00
HTTP & Tech
3.89
- Score is divided by 2 (number of urls tested with redirects)
- HTTP to HTTPS redirect 5.00
- TLSv1.3 support 5.00
- TLSv1.2 support 5.00
- No IPv6 support 1.00
- IPv4 support 5.00
- No HTTPv3 support 1.00
- No QUIC support 1.00
- HTTP to HTTPS redirect 5.00
- TLSv1.3 support 5.00
- TLSv1.2 support 5.00
- IPv6 support 5.00
- IPv4 support 5.00
- No HTTPv3 support 1.00
- No QUIC support 1.00
Carbon Calculator
4.50
- Webpage generates very little carbon dioxide!
- Carbon dioxide per pageview: 0.39 gram(s)
- More green than 90 % of the websites tested by webperf.se (Reference updated: 2022-12-16).
- More green than 90 % of the websites tested by webperf.se (Reference updated: 2021-12-12).
- Network transfer size: 624 kb 4.50
Software
2.25
- Technology used: gatsby, js
- License(s) used: mit
- Metadata used: viewport, dns-prefetch
- JS Libraries used: gatsby, core-js
- Languages found: en
- Image formats used: png, ico
- Update(s) available 2.25