optimizely .com

2.74

Results collected 2023-09-07 from https://www.optimizely.com/

Lighthouse Performance

1.45

The website is quite slow.
Total Blocking Time 1.00
Largest Contentful Paint: 6.8 s 1.00
Cumulative Layout Shift 5.00
Speed Index 1.00
First Contentful Paint: 4.0 s 1.15
Avoid an excessive DOM size: 3,057 elements 1.00
Image elements do not have explicit width and height 1.00
Max Potential First Input Delay 1.00
Minimize main-thread work 1.00
Page prevented back/forward cache restoration 1.00
Reduce JavaScript execution time: 14.3 s 1.00
Reduce initial server response time 1.00
Reduce the impact of third-party code 1.00
Serve static assets with an efficient cache policy: 30 resources found 1.00
Time to Interactive 1.00
Eliminate render-blocking resources: Potential savings of 950 ms 2.45
First Meaningful Paint: 4.0 s 2.50
Reduce unused JavaScript: Potential savings of 743 KiB 2.65
Preconnect to required origins: Potential savings of 330 ms 3.80
Reduce unused CSS: Potential savings of 11 KiB 4.10
Avoids enormous network payloads: Total size was 2,237 KiB 4.85
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
Defer offscreen images 5.00
Efficiently encode images 5.00
Enable text compression 5.00
Has a <meta name="viewport"> tag with width or initial-scale 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 passive listeners to improve scrolling performance 5.00
Enable text compression 5.00

Lighthouse SEO

4.65

Pretty good at SEO, but still has some potential improvements.
Links are not crawlable 1.00
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 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
Image elements have [alt] attributes 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

3.40

About average on following good practice
Uses deprecated APIs 1.00
Browser errors were logged to the console 1.00
Registers an unload listener 1.00
Uses HTTPS 5.00
Allows users to paste into input fields 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
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
Uses deprecated APIs 1.00
Page has the HTML doctype 5.00

W3C HTML

1.50

The tested page has 260 errors in its HTML code. It is not that good.
Number of grouped error type: 15 2.00
Number of errors: 260 1.00
Bad value X for attribute X on element X: An ID must not contain whitespace. (errors of this type: 172 pcs)
Attribute X not allowed on element X at this point. (errors of this type: 35 pcs)
Bad value X for attribute X on element X: Expected a digit but saw X instead. (errors of this type: 18 pcs)
Element X not allowed as child of element X in this context. (Suppressing further errors from this subtree.) (errors of this type: 11 pcs)
An X element with a X attribute whose value is X must not have an X attribute whose value is X or X. (errors of this type: 5 pcs)
CSS: X: X is not a X value. (errors of this type: 4 pcs)
The element X must not appear as a descendant of the X element. (errors of this type: 3 pcs)
Element X is missing required attribute X. (errors of this type: 3 pcs)
Bad value X for attribute X on element X: Not a valid XML 1.0 name. (errors of this type: 2 pcs)
The value of the X attribute of the X element must be the ID of a non-hidden form control. (errors of this type: 2 pcs)
Bad value X for attribute X on element X. (errors of this type: 1 pcs)
A X element with a X attribute must not have a X attribute with the value X. (errors of this type: 1 pcs)
CSS: X: Missing a semicolon before the property name X. (errors of this type: 1 pcs)
CSS: X: Parse Error. (errors of this type: 1 pcs)
Element X is missing one or more of the following attributes: X, X, X, X, X. (errors of this type: 1 pcs)

Standard Files

2.88

robots.txt seems ok. 5.00
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

4.70

The website can be more accessible, but is rather good!
Elements with visible text labels do not have matching accessible names. 1.00
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
Form elements have associated labels 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
[aria-hidden="true"] elements do not contain focusable descendents 5.00
[id] attributes on active, focusable elements are unique 5.00
Image elements do not have [alt] attributes that are redundant text. 5.00
Values assigned to role="" are valid ARIA roles. 5.00

Sitespeed.io

1.00

The website is very slow! 1.00
Speedindex: 9530 1.00
Loading time: 14.08s
Number of requests: 196

Integrity & Security

2.44

Rather poor on user privacy.
Result generated: 2023-09-06 16:55:58 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 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 85 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

2.25

The webpage generates some more carbon dioxide than is preferable :/
Carbon dioxide per pageview: 1.38 gram(s)
More green than 45 % of the websites tested by webperf.se (Reference updated: 2022-12-16).
More green than 46 % of the websites tested by webperf.se (Reference updated: 2021-12-12).
Network transfer size: 2 mb 2.25

Software

2.02

CMS used: episerver, umbraco
WebServer used: nginx
Technology used: asp.net, csharp, php, js, c
License(s) used: mit
Metadata used: viewport
JS Libraries used: domready, core-js, js-cookie, react, uuid, transformation-matrix, jquery, jquery-ui
Languages found: en, de, sv, no
Image formats used: svg, png, webp, gif, ico
Update(s) available 2.02