davidhome .net

4.08

Results collected 2023-09-07 from https://www.davidhome.net

Lighthouse Performance

2.75

The website is quite slow.
Total Blocking Time: 660 ms 2.25
Largest Contentful Paint: 7.2 s 1.00
Cumulative Layout Shift 5.00
First Contentful Paint: 2.3 s 3.65
Speed Index: 4.0 s 4.05
Ensure text remains visible during webfont load 1.00
Page prevented back/forward cache restoration 1.00
Reduce the impact of third-party code 1.00
First Meaningful Paint: 5.0 s 1.45
Max Potential First Input Delay: 310 ms 1.60
Reduce unused JavaScript: Potential savings of 239 KiB 1.75
Time to Interactive: 8.7 s 1.80
Minimize main-thread work: 3.3 s 3.20
Preconnect to required origins: Potential savings of 330 ms 3.80
Reduce JavaScript execution time: 1.8 s 4.00
Eliminate render-blocking resources: Potential savings of 230 ms 4.15
Enable text compression: Potential savings of 54 KiB 4.45
Reduce unused CSS: Potential savings of 47 KiB 4.45
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
Has a <meta name="viewport"> tag with width or initial-scale 5.00
Initial server response time was short 5.00
Largest Contentful Paint image was not lazily loaded 5.00
Minify CSS 5.00
Minify JavaScript 5.00
Preload Largest Contentful Paint image 5.00
Properly size images 5.00
Remove duplicate modules in JavaScript bundles 5.00
Serve images in next-gen formats 5.00
Use HTTP/2 5.00
Use video formats for animated content 5.00
Uses efficient cache policy on static assets 5.00
Uses passive listeners to improve scrolling performance 5.00
Enable text compression 1.00

Lighthouse SEO

4.60

Pretty good at SEO, but still has some potential improvements.
Document does not have a meta description 1.00
Document avoids plugins 5.00
Document has a <title> element 5.00
Document has a valid hreflang 5.00
Document has a valid rel=canonical 5.00
Document uses legible font sizes 5.00
Has a <meta name="viewport"> tag with width or initial-scale 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
robots.txt is valid 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

4.00

robots.txt seems ok. 5.00
Sitemap seems to work. 5.00
RSS subscription found. 5.00
security.txt is missing. 1.00

Lighthouse A11y

4.25

The website can be more accessible, but is rather good!
Elements with visible text labels do not have matching accessible names. 1.00
Links do not have a discernible name 1.00
<html> element does not have a [lang] attribute 1.00
ARIA IDs are unique 5.00
Buttons have an accessible name 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
Links are distinguishable without relying on color. 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
[aria-hidden="true"] elements do not contain focusable descendents 5.00
Heading elements appear in a sequentially-descending order 5.00

Sitespeed.io

4.74

The website is fast. 4.74
Speedindex: 759 4.74
Loading time: 1.13s
Number of requests: 33

Yellow Lab Tools

4.45

The website has good frontend code. 4.45
Page weight 4.65
Requests 5.00
DOM complexity 5.00
JS complexity 4.55
Bad JS 5.00
jQuery 5.00
CSS complexity 2.90
Bad CSS 3.65
Web fonts 1.25
Server config 4.95
Number of iframes 5.00
Total JS execution time 4.40
DOM access 5.00
Scroll events bound 4.30
document.write calls 5.00
Synchronous Ajax requests 5.00
Rules count 1.15
Total weight 5.00
Image optimization 5.00
Oversized images 5.00
Gzip/Brotli compression 4.00
File minification 3.90
Requests number 5.00
Different domains 5.00
404 not found 5.00
Connections closed 5.00
Identical content 5.00
Below the fold images 5.00
Webfonts number 1.00
Overweighted webfonts 1.00
WOFF 2 5.00
HTTP protocols 5.00
TLS protocols 5.00
Caching disabled 5.00
Caching not specified 5.00
Caching too short 4.75
TLS protocols 5.00
IDs duplicated 5.00
CSS syntax error 5.00
Gzip/Brotli compression 4.00
404 not found 5.00
TLS protocols 5.00

Pa11y

3.95

The accessibility is apparently really bad! Probably both for disabled people and everyone of us when we need some accessibility!
Number of error type: 4 4.20
Number of errors: 13 3.70

Problems:

Heading tag found with no content. Text that is not intended as a heading should not be marked up with heading tags.
Anchor element found with a valid href attribute, but no link content has been supplied.
Iframe element requires a non-empty title attribute that identifies the frame.
The language specified in the lang attribute of the document element does not appear to be well-formed.

Integrity & Security

2.69

Rather poor on user privacy.
Result generated: 2023-09-06 17:07:21 Etc/UTC (Cached for 24 hours)
HTTPS by default: is good! 5.00
HTTP Strict Transport Security HSTS: is pretty bad. 1.00
Content Security Policy: is pretty bad. 1.00
Reporting CSP Certificate Transparency Network Error Logging: is not that good. 2.50
Referrer Policy: is good! 5.00
Subresource Integrity SRI: is pretty bad. 1.00
HTTP headers: is good! 5.00
Cookies: is ok, with 12 error(s) and 0 warning(s). 1.00

HTTP & Tech

4.56

Score is divided by 2 (number of urls tested with redirects)
HTTP to HTTPS redirect 5.00
No TLSv1.3 support 1.00
No TLSv1.2 support 1.00
IPv6 support 5.00
IPv4 support 5.00
HTTPv3 support 5.00
QUIC support 5.00
HTTP to HTTPS redirect 5.00
TLSv1.3 support 5.00
TLSv1.2 support 5.00
IPv6 support 5.00
IPv4 support 5.00
HTTPv3 support 5.00
QUIC support 5.00

Carbon Calculator

4.10

Webpage generates little carbon dioxide!
Carbon dioxide per pageview: 0.56 gram(s)
More green than 82 % of the websites tested by webperf.se (Reference updated: 2022-12-16).
More green than 82 % of the websites tested by webperf.se (Reference updated: 2021-12-12).
Network transfer size: 903 kb 4.10

Software

3.00

CMS used: umbraco
Technology used: js, sass, scss
License(s) used: mit
Metadata used: viewport
JS Libraries used: bootstrap, start-bootstrap---clean-blog, startbootstrap-clean-blog, highlight, cookie
Image formats used: png, ico
Update(s) available 3.00