Webperf result blog.mathiaskunto.com

4.00

Results from https://blog.mathiaskunto.com/

Lighthouse Performance

4.20

Results collected at 2025-01-16

- The website is fast.

Performance section:
- Total Blocking Time 5.00
- Largest Contentful Paint: 3.8 s 2.70
- Cumulative Layout Shift 5.00
- First Contentful Paint: 2.7 s 3.05
- Speed Index: 3.0 s 4.70
- Preconnect to required origins 1.00
- Largest Contentful Paint element 1.00
- Eliminate render-blocking resources 1.00
- Minify CSS 1.00
- Reduce unused CSS 1.00
- Ensure text remains visible during webfont load: 2.50
- Serve static assets with an efficient cache policy: 19 resources found 2.50
- Reduce unused JavaScript: Potential savings of 33 KiB 2.50
- Avoid serving legacy JavaScript to modern browsers: Potential savings of 6 KiB 2.50
- Time to Interactive: 5.4 s 3.60
- Has a `<meta name="viewport">` tag with `width` or `initial-scale` 5.00
- Screenshot Thumbnails 5.00
- Final Screenshot 5.00
- Max Potential First Input Delay 5.00
- Initial server response time was short 5.00
- Avoid chaining critical requests 5.00
- Avoid multiple page redirects 5.00
- Minimizes main-thread work 5.00
- JavaScript execution time 5.00
- Diagnostics 5.00
- Network Requests 5.00
- Network Round Trip Times 5.00
- Server Backend Latencies 5.00
- Tasks 5.00
- Metrics 5.00
- Resources Summary 5.00
- Minimize third-party usage 5.00
- Avoid large layout shifts 5.00
- Avoid long main-thread tasks 5.00
- Avoid non-composited animations 5.00
- Image elements have explicit `width` and `height` 5.00
- Script Treemap Data 5.00
- Avoids enormous network payloads 5.00
- Defer offscreen images 5.00
- Minify JavaScript 5.00
- Serve images in next-gen formats 5.00
- Efficiently encode images 5.00
- Enable text compression 5.00
- Properly size images 5.00
- Use video formats for animated content 5.00
- Remove duplicate modules in JavaScript bundles 5.00
- Avoids an excessive DOM size 5.00
- Avoids `document.write()` 5.00
- Use HTTP/2 5.00
- Uses passive listeners to improve scrolling performance 5.00
- Page didn't prevent back/forward cache restoration 5.00

404 Page

5.00

Results collected at 2025-01-16

- Correct status code? Got 404, and 404 is correct. 5.00
- Found a page title in the page's metadata? 5.00
- Found headline (h1)? 5.00
- Is it lacking text describing that an error has occurred (in Swedish OR English for English sites)? 5.00
- Is text content length is less than 150 characters, which indicates that the user is not being referred, nor advised? 5.00

Lighthouse SEO

4.60

Results collected at 2025-01-16

- Pretty good at SEO, but still has some potential improvements.
- Links do not have descriptive text 1.00
- Page isn’t blocked from indexing 5.00
- Document has a `<title>` element 5.00
- Image elements have `[alt]` attributes 5.00
- Document has a meta description 5.00
- Page has successful HTTP status code 5.00
- Links are crawlable 5.00
- robots.txt is valid 5.00
- Document has a valid `hreflang` 5.00
- Document has a valid `rel=canonical` 5.00

Lighthouse Best Practices

5.00

Results collected at 2025-01-16

- The website is adhering to best practice according to Google Lighthouse!
- Uses HTTPS 5.00
- Avoids deprecated APIs 5.00
- Avoids third-party cookies 5.00
- Allows users to paste into input fields 5.00
- Has a `<meta name="viewport">` tag with `width` or `initial-scale` 5.00
- No browser errors logged to the console 5.00
- Displays images with correct aspect ratio 5.00
- Serves images with appropriate resolution 5.00
- Page has the HTML doctype 5.00
- Properly defines charset 5.00
- Avoids requesting the geolocation permission on page load 5.00
- No issues in the `Issues` panel in Chrome Devtools 5.00
- Avoids requesting the notification permission on page load 5.00
- Document uses legible font sizes 5.00
- Page has valid source maps 5.00
- Ensure CSP is effective against XSS attacks 5.00
- Use a strong HSTS policy 5.00
- Ensure proper origin isolation with COOP 5.00
- Detected JavaScript libraries 5.00

W3C HTML

2.50

Results collected at 2025-01-16

- The tested page has 44 errors in its HTML code. It is not that good.

Standards section:
- #1: Webpage - Number of grouped error type: 5 4.00
- #1: Webpage - Number of errors: 43 1.00
- Duplicate attribute “rel”. (errors of this type: 20 pcs)
- Duplicate ID “featured-thumbnail”. (errors of this type: 19 pcs)
- The “itemprop” attribute was specified, but the element is not a property of any item. (errors of this type: 2 pcs)
- Bad value “//fonts.googleapis.com/css?family=Lato:300|Lato:normal|Open+Sans:normal|Open+Sans:600&subset=latin” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed. (errors of this type: 1 pcs)
- Bad value “auto, (max-width: 553px) 100vw, 553px” for attribute “sizes” on element “img”: Bad CSS number token: Expected a minus sign or a digit but saw “a” instead at “auto,”. (errors of this type: 1 pcs)

Lighthouse A11y

4.00

Results collected at 2025-01-16

- The website can be more accessible, but is rather good!

Accessibility section:
- `[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5. 1.00
- Elements with `role="dialog"` or `role="alertdialog"` do not have accessible names. 1.00
- Background and foreground colors do not have a sufficient contrast ratio. 1.00
- Links do not have a discernible name 1.00
- Links rely on color to be distinguishable. 1.00
- `[aria-*]` attributes match their roles 5.00
- `[aria-hidden="true"]` is not present on the document `<body>` 5.00
- `[role]`s have all required `[aria-*]` attributes 5.00
- `[aria-*]` attributes have valid values 5.00
- `[aria-*]` attributes are valid and not misspelled 5.00
- Buttons have an accessible name 5.00
- Image elements have `[alt]` attributes 5.00
- ARIA attributes are used as specified for the element's role 5.00
- `[aria-hidden="true"]` elements do not contain focusable descendents 5.00
- Elements use only permitted ARIA attributes 5.00
- `[role]` values are valid 5.00
- Document has a `<title>` element 5.00
- `<html>` element has a `[lang]` attribute 5.00
- `<html>` element has a valid value for its `[lang]` attribute 5.00
- Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). 5.00
- List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements 5.00
- No element has a `[tabindex]` value greater than 0 5.00
- Touch targets have sufficient size and spacing. 5.00
- Heading elements appear in a sequentially-descending order 5.00
- Uses ARIA roles only on compatible elements 5.00
- Deprecated ARIA roles were not used 5.00
- Image elements do not have `[alt]` attributes that are redundant text. 5.00
- Identical links have the same purpose. 5.00

Sitespeed.io

4.73

Results collected at 2025-01-16

Performance section:
- [desktop] TTFB (Time to First Byte): 385.00ms, ±23.00ms 3.00
- [desktop] DOMContentLoaded: 544.00ms, ±36.00ms 4.91
- [desktop] FCP (First Contentful Paint): 553.67ms, ±32.33ms 5.00
- [desktop] LCP (Largest Contentful Paint): 656.00ms, ±27.00ms 3.00
- [desktop] Load: 736.67ms, ±21.33ms 4.53
- [desktop] CLS (Cumulative Layout Shift): 0.00ms, ±0.00ms 5.00
- [desktop] FirstVisualChange: 566.50ms, ±33.50ms 4.87
- [desktop] SpeedIndex: 638.00ms, ±27.00ms 4.72
- [desktop] VisualComplete85: 700.00ms, ±0.00ms 4.60
- [desktop] TBT (Total Blocking Time): 0.00ms, ±0.00ms 5.00
- [desktop] firstPaint: 553.67ms, ±32.33ms
- [desktop] LastVisualChange: 1935.00ms, ±65.00ms
- [mobile] TTFB (Time to First Byte): 353.00ms, ±3.00ms 5.00
- [mobile] DOMContentLoaded: 499.67ms, ±3.33ms 5.00
- [mobile] FCP (First Contentful Paint): 513.00ms, ±13.00ms 5.00
- [mobile] LCP (Largest Contentful Paint): 599.67ms, ±8.33ms 5.00
- [mobile] Load: 635.67ms, ±11.33ms 5.00
- [mobile] CLS (Cumulative Layout Shift): 0.00ms, ±0.00ms 5.00
- [mobile] FirstVisualChange: 517.00ms, ±17.00ms 5.00
- [mobile] SpeedIndex: 734.00ms, ±5.00ms 5.00
- [mobile] VisualComplete85: 900.00ms, ±0.00ms 5.00
- [mobile] TBT (Total Blocking Time): 0.00ms, ±0.00ms 5.00
- [mobile] firstPaint: 513.00ms, ±13.00ms
- [mobile] LastVisualChange: 1870.00ms, ±0.00ms

Yellow Lab Tools

3.60

Results collected at 2025-01-16

- The website is neither good nor bad. 3.60
- Network 4.85
- Images 4.65
- DOM complexity 4.50
- JS complexity 5.00
- Bad JS 5.00
- jQuery 5.00
- CSS complexity 2.75
- Bad CSS 1.00
- Web fonts 1.40
- Server config 4.45

Performance section:
- 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 4.10
- Total weight 5.00
- Gzip/Brotli compression 5.00
- File minification 3.30
- 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 2.25
- WOFF 2 3.35
- HTTP protocols 5.00
- TLS protocols 5.00
- Caching disabled 5.00
- Caching not specified 5.00
- Caching too short 1.00

Pa11y

1.60

Results collected at 2025-01-16

Accessibility section:
- Number of types of issues: 14 2.20
- Number of issues: 161 1.00

##### Problems:
- Img element is the only content of the link, but is missing alt text. The alt text should describe the purpose of the link.
- 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 2.35:1. Recommendation: change text colour to #717682.
- 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 2.11:1. Recommendation: change background to #047cbe.
- 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 2.26:1. Recommendation: change text colour to #338711.
- Duplicate id attribute value "menu-item-4020" found on the web page.
- Duplicate id attribute value "pull" found on the web page.
- 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 3.17:1. Recommendation: change text colour to #8f7300.
- Duplicate id attribute value "navigation" found on the web page.
- 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.
- Anchor element found with a valid href attribute, but no link content has been supplied.
- Info: Too many unique problems to list them all.

Integrity & Security

2.78

Results collected at 2025-01-16

- Rather poor on user privacy.

Security section:
- HTTPS by default is good! 5.00
- HTTP Strict Transport Security HSTS is ok, with 1 error(s) and 1 warning(s). 4.25
- Content Security Policy is pretty bad. 1.00
- Reporting CSP Certificate Transparency Network Error Logging is not that good. 2.50
- Referrer Policy is not that good. 2.50
- Subresource Integrity SRI is pretty bad. 1.00
- HTTP headers is good! 5.00
- Cookies is ok, with 8 error(s) and 0 warning(s). 1.00

Energy Efficiency

4.65

Results collected at 2025-01-16

- Webpage generates very little carbon dioxide!
- Carbon dioxide per pageview: 1.02 gram(s)
- More green than 93 % of the websites tested by webperf.se (Reference updated: 2025-01-09).
- Network transfer size: 1.61 MB 4.65

Software

4.97

Results collected at 2025-01-16

- CMS used: wordpress
- Web server used: tomcat
- Technology used: js, php
- License(s) used: apache-2.0, mit
- Metadata used: apple-touch-icon, canonical, dns-prefetch, icon, viewport
- Javascript libraries used: jquery, jquery-migrate, jquery-ui, pace, parallax
- Languages found: en-us
- Image formats used: jpeg, jpg, png

Security section:
##### Software is behind >=1 versions 4.9

###### Introduction:
Software used is behind 1 or more version compared to latests.
This is a small indicator that you need to update to latest version.
You can fix this by updating software to latest version.

###### Detected software(s):
- jquery-migrate 3.4.1
- jquery-ui 1.13.3

###### Affected resource(s):
- https://blog.mathiaskunto.com/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1
- https://blog.mathiaskunto.com/wp-includes/js/jquery/ui/core.min.js?ver=1.13.3
- https://blog.mathiaskunto.com/wp-includes/js/jquery/ui/tabs.min.js?ver=1.13.3
##### NO Common Vulnerabilities and Exposures found 5.00
##### Opensource software used seem to be maintained 5.00
##### You don't seem to be using 'END OF LIFE' software 5.00

Stylelint CSS

4.33

Results collected at 2025-01-16

- The CSS is good.

Standards section:
- `<style>` in: #1: Webpage , number of grouped error type: 0 5.00
- `<style>` in: #1: Webpage , number of errors: 0 5.00
- `style=""` in: #1: Webpage , number of grouped error type: 0 5.00
- `style=""` in: #1: Webpage , number of errors: 0 5.00
- `<link rel="stylesheet">` in: #1: Webpage , number of grouped error type: 7 3.60
- `<link rel="stylesheet">` in: #1: Webpage , number of errors: 60 1.00
- Unexpected empty block (block-no-empty) (number of errors of this type: 15)
- Unexpected unknown function "Alpha" (function-no-unknown) (number of errors of this type: 5)
- Unexpected unknown custom property "--wp--style--block-gap" (no-unknown-custom-properties) (number of errors of this type: 5)
- Unexpected unknown value "-ms-linear-gradient(top, #45bdff 0%,#1d8ce0 100%)" for property "background" (declaration-property-value-no-unknown) (number of errors of this type: 4)
- Unexpected unknown custom property "--wp--lightbox-image-height" (no-unknown-custom-properties) (number of errors of this type: 2)
- Unexpected unknown custom property "--wp--lightbox-image-width" (no-unknown-custom-properties) (number of errors of this type: 2)
- Unexpected unknown custom property "--wp--lightbox-scrollbar-width" (no-unknown-custom-properties) (number of errors of this type: 2)
- Unexpected unknown custom property "--wp--lightbox-initial-left-position" (no-unknown-custom-properties) (number of errors of this type: 2)
- Unexpected unknown custom property "--wp--lightbox-initial-top-position" (no-unknown-custom-properties) (number of errors of this type: 2)
- Unexpected unknown custom property "--wp--lightbox-scale" (no-unknown-custom-properties) (number of errors of this type: 2)
- Cannot parse property value "Alpha(Opacity=0)" for property "filter" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- Cannot parse property value "Alpha(Opacity=70)" for property "filter" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- Cannot parse property value "Alpha(Opacity=35)" for property "filter" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- Unexpected unknown function "mask" (function-no-unknown) (number of errors of this type: 1)
- Unexpected unknown custom property "--wp--lightbox-container-height" (no-unknown-custom-properties) (number of errors of this type: 1)
- Unexpected unknown custom property "--wp--lightbox-container-width" (no-unknown-custom-properties) (number of errors of this type: 1)
- Unexpected unknown custom property "--wp--style--root--padding-top" (no-unknown-custom-properties) (number of errors of this type: 1)
- Unexpected unknown custom property "--wp--style--root--padding-right" (no-unknown-custom-properties) (number of errors of this type: 1)
- Unexpected unknown custom property "--wp--style--root--padding-bottom" (no-unknown-custom-properties) (number of errors of this type: 1)
- Unexpected unknown custom property "--wp--style--root--padding-left" (no-unknown-custom-properties) (number of errors of this type: 1)
- Unexpected shorthand "font" after "font-size" (declaration-block-no-shorthand-property-overrides) (number of errors of this type: 1)
- Unexpected unknown pseudo-class selector ":input-placeholder" (selector-pseudo-class-no-unknown) (number of errors of this type: 1)
- Unexpected unknown value "auto" for property "-moz-user-select" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- Unexpected unknown value "auto" for property "-ms-user-select" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- Unexpected unknown value "-o-grab" for property "cursor" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- Unexpected unknown value "-ms-grab" for property "cursor" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- Unexpected unknown value "scale(1.3, 1.3)" for property "-webkit-transition" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- Unexpected unknown value "scale(1.3, 1.3)" for property "transition" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- Unexpected unknown value "h" for property "overflow" (declaration-property-value-no-unknown) (number of errors of this type: 1)
- `content-type=".*css.*"` in: #13: css, number of grouped error type: 0 5.00
- `content-type=".*css.*"` in: #13: css, number of errors: 0 5.00