herlitz .io

3.52

Results collected 2024-04-05 from https://www.herlitz.io/

Lighthouse Performance

2.25

The website is quite slow.
Total Blocking Time 5.00
Cumulative Layout Shift: 0.493 1.00
Largest Contentful Paint: 5.9 s 1.00
First Contentful Paint: 3.5 s 1.80
Speed Index: 6.1 s 2.20
Avoid large layout shifts 1.00
Avoid large layout shifts 1.00
Eliminate render-blocking resources 1.00
Largest Contentful Paint element 1.00
Minify JavaScript 1.00
Preconnect to required origins 1.00
Reduce unused CSS 1.00
Reduce unused JavaScript 1.00
Use HTTP/2 1.00
First Meaningful Paint: 4.2 s 2.25
Avoid serving legacy JavaScript to modern browsers: Potential savings of 10 KiB 2.50
Defer offscreen images: Potential savings of 15 KiB 2.50
Enable text compression: Potential savings of 4 KiB 2.50
Ensure text remains visible during webfont load: 2.50
Image elements do not have explicit width and height: 2.50
Serve images in next-gen formats: Potential savings of 234 KiB 2.50
Serve static assets with an efficient cache policy: 3 resources found 2.50
Time to Interactive: 5.9 s 3.30
Max Potential First Input Delay: 170 ms 3.95
Avoid chaining critical requests 5.00
Avoid long main-thread tasks 5.00
Avoid multiple page redirects 5.00
Avoids document.write() 5.00
Avoids an excessive DOM size 5.00
Avoids enormous network payloads 5.00
Diagnostics 5.00
Efficiently encode images 5.00
Final Screenshot 5.00
Has a <meta name="viewport"> tag with width or initial-scale 5.00
Initial server response time was short 5.00
JavaScript execution time 5.00
Metrics 5.00
Minify CSS 5.00
Minimize third-party usage 5.00
Minimizes main-thread work 5.00
Network Requests 5.00
Network Round Trip Times 5.00
Properly size images 5.00
Remove duplicate modules in JavaScript bundles 5.00
Resources Summary 5.00
Screenshot Thumbnails 5.00
Script Treemap Data 5.00
Server Backend Latencies 5.00
Tasks 5.00
Use video formats for animated content 5.00
Uses passive listeners to improve scrolling performance 5.00
Enable text compression 1.00

Lighthouse SEO

3.55

About average on search engine optimisation (SEO) according to Google.
Document does not have a meta description 1.00
Image elements do not have [alt] attributes 1.00
Page is blocked from indexing 1.00
Tap targets are not sized appropriately: 53% appropriately sized tap targets 2.35
Document avoids plugins 5.00
Document has a <title> element 5.00
Document has a valid hreflang 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

Lighthouse Best Practices

4.80

The website can still make some improvements on best practice.
Avoids deprecated APIs 5.00
Avoids third-party cookies 5.00
Browser errors were logged to the console 1.00
Uses HTTPS 5.00
Missing source maps for large first-party JavaScript 1.00
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 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
Detected JavaScript libraries 5.00
Ensure CSP is effective against XSS attacks 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

4.65

The tested page has 3 errors in its HTML code.
Number of grouped error type: 2 4.60
Number of errors: 3 4.70
Attribute X not allowed on element X at this point. (errors of this type: 2 pcs)
Bad value X for attribute X on element X: Illegal character in query: X is not allowed. (errors of this type: 1 pcs)

Standard Files

1.88

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 is missing in the HTMLs metadata. 4.50
security.txt is missing. 1.00

Lighthouse A11y

3.95

The accessibility is about average, but needs to get better.
Image elements do not have [alt] attributes 1.00
Background and foreground colors do not have a sufficient contrast ratio. 1.00
Links do not have a discernible name 1.00
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
Document has a <title> element 5.00
Form elements have associated labels 5.00
<html> element has a [lang] attribute 5.00
<html> element has a valid value for its [lang] attribute 5.00
Heading elements appear in a sequentially-descending order 5.00
Image elements do not have [alt] attributes that are redundant text. 5.00
Document has a main landmark. 5.00

Sitespeed.io

3.62

About average speed. 3.62
Speedindex: 1880 3.62
Loading time: 2.24s
Number of requests: 24

Yellow Lab Tools

4.40

The website has good frontend code. 4.40
Page weight 3.80
Requests 3.90
DOM complexity 4.90
JS complexity 4.85
Bad JS 5.00
jQuery 5.00
CSS complexity 4.00
Bad CSS 4.80
Web fonts 3.75
Server config 4.40
Number of iframes 5.00
Total JS execution time 5.00
DOM access 4.55
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 4.15
Oversized images 5.00
Gzip/Brotli compression 3.75
File minification 1.00
Requests number 5.00
Different domains 5.00
404 not found 1.00
Connections closed 5.00
Identical content 5.00
Below the fold images 1.80
Webfonts number 2.50
Overweighted webfonts 5.00
WOFF 2 5.00
HTTP protocols 2.40
TLS protocols 5.00
Caching disabled 5.00
Caching not specified 5.00
Caching too short 5.00
jQuery version 5.00
TLS protocols 5.00
IDs duplicated 5.00
CSS syntax error 5.00
Gzip/Brotli compression 3.75
404 not found 1.00
TLS protocols 5.00

Pa11y

2.40

The accessibility is apparently really bad! Probably both for disabled people and everyone of us when we need some accessibility!
Number of error type: 6 3.80
Number of errors: 72 1.00

Problems:

A searchinput element does not have a name available to an accessibility API. Valid names are: label element, title undefined, aria-label undefined, aria-labelledby undefined.
A element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 3.98:1. Recommendation: change text colour to #0072ed.
A element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.97:1. Recommendation: change background to #4374cc.
Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.
A element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 3.04:1. Recommendation: change background to #008297.
Img element is the only content of the link, but is missing alt text. The alt text should describe the purpose of the link.

Integrity & Security

2.62

Rather poor on user privacy.
Result generated: 2024-04-05 08:37:23 Etc/UTC (Cached for 24 hours)
HTTPS by default: is good! 5.00
Strict Transport Security: is pretty bad. 1.00
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 5 error(s) and 0 warning(s). 2.50

HTTP & Tech

3.67

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
No IPv6 support 1.00
IPv4 support 5.00
No HTTPv3 support 1.00
No QUIC support 1.00

Carbon Calculator

4.45

Webpage generates little carbon dioxide!
Carbon dioxide per pageview: 0.4 gram(s)
More green than 89 % 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: 649 kb 4.45