Webperf result blog.ynzen.com

Security section:
- security.txt has incorrect contenterror
Tested:
- https://blog.ynzen.com/security.txt
- https://blog.ynzen.com/.well-known/security.txt

- security.txt is missing the required contact infowarning
Tested:
- https://blog.ynzen.com/security.txt
- https://blog.ynzen.com/.well-known/security.txt

- security.txt requires expiration information (added in draft v10) is missingwarning
Tested:
- https://blog.ynzen.com/security.txt
- https://blog.ynzen.com/.well-known/security.txt

- Sitemap, Url in <loc> has to start with https://ok
- security.txt is missingok

Standards section:
- robots.txt is missing, not allowed to download or has not the expected contentok
- Sitemap is not specified in robots.txtok
- Sitemap, no valid sitemap foundok
- Sitemap, Url in <loc> must use same domain as robots.txtok
- Sitemap, No duplicate Urls in <loc> allowedok
- Sitemap, lists other stuff then webpagesok
- Sitemap, is exceeding 50 000 itemsok
- Sitemap, has no itemsok
- Feed is missing in the HTML's metadataok

Performance section:
- [desktop] TTFB (Time to First Byte): 132.00ms, ±2.00ms 5.00
- [desktop] DOMContentLoaded: 443.00ms, ±25.00ms 5.00
- [desktop] LCP (Largest Contentful Paint): 538.00ms, ±34.00ms 3.00
- [desktop] Load: 1243.33ms, ±276.67ms 3.51
- [desktop] TBT (Total Blocking Time): 30.50ms, ±12.50ms 5.00
- [desktop] CLS (Cumulative Layout Shift): 0.00ms, ±0.00ms 5.00
- [desktop] FirstVisualChange: 371.50ms, ±5.50ms 5.00
- [desktop] SpeedIndex: 399.50ms, ±5.50ms 5.00
- [desktop] VisualComplete85: 371.50ms, ±5.50ms 5.00
- [desktop] FCP (First Contentful Paint): 362.00ms, ±0.00ms 5.00
- [desktop] firstPaint: 362.00ms, ±14.00ms
- [desktop] LastVisualChange: 811.00ms, ±22.00ms
- [mobile] TTFB (Time to First Byte): 131.67ms, ±7.33ms 5.00
- [mobile] DOMContentLoaded: 338.00ms, ±7.00ms 5.00
- [mobile] LCP (Largest Contentful Paint): 582.00ms, ±222.00ms 5.00
- [mobile] Load: 1988.33ms, ±1191.67ms 4.02
- [mobile] TBT (Total Blocking Time): 48.50ms, ±7.50ms 5.00
- [mobile] FirstVisualChange: 317.00ms, ±317.00ms 5.00
- [mobile] SpeedIndex: 335.00ms, ±335.00ms 5.00
- [mobile] VisualComplete85: 317.00ms, ±317.00ms 5.00
- [mobile] FCP (First Contentful Paint): 432.00ms, ±0.00ms 5.00
- [mobile] CLS (Cumulative Layout Shift): 0.00ms, ±0.00ms 5.00
- [mobile] firstPaint: 432.00ms, ±156.00ms
- [mobile] LastVisualChange: 600.00ms, ±600.00ms

Accessibility section:
- This 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 4.4:1. Recommendation: change background to #f7f7f8.error
Tested:
- https://blog.ynzen.com/

- Duplicate id attribute value "__jsx-668768712" found on the web page.error
Tested:
- https://blog.ynzen.com/

- Anchor element found with a valid href attribute, but no link content has been supplied.error
Tested:
- https://blog.ynzen.com/

- Iframe element requires a non-empty title attribute that identifies the frame.error
Tested:
- https://blog.ynzen.com/

- About average privacy settings, but should get better.

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 good! 5.00
- 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 15 error(s) and 0 warning(s). 1.00

- Webpage generates very little carbon dioxide!
- Carbon dioxide per pageview: 0.0 gram(s)
- More green than 99 % of the websites tested by webperf.se (Reference updated: 2025-01-09).
- Network transfer size: 0.00 KB 5.00

Accessibility section:
##### You don't seem to be using accessibility overlay software 5.00

Security section:
##### NO Common Vulnerabilities and Exposures found 5.00
##### You seem to be up to date for all software we can identify 5.00
##### Opensource software used seem to be maintained 5.00
##### You don't seem to be using 'END OF LIFE' software 5.00

- no-networkerror
Tested:
- https://blog.ynzen.com/

- no-networkerror
Tested:
- https://blog.ynzen.com/

- no-networkerror
Tested:
- https://blog.ynzen.com/

- Performance only 3.70
- Accessibility only 4.00

- Uses HTTPSok
Tested:
- https://blog.ynzen.com/

- geolocation-on-startok
Tested:
- https://blog.ynzen.com/

- notification-on-startok
Tested:
- https://blog.ynzen.com/

- csp-xssok
Tested:
- https://blog.ynzen.com/

- has-hstsok
Tested:
- https://blog.ynzen.com/

- origin-isolationok
Tested:
- https://blog.ynzen.com/

- paste-preventing-inputsok
Tested:
- https://blog.ynzen.com/

- image-aspect-ratiook
Tested:
- https://blog.ynzen.com/

- Serves images with low resolutionok
Tested:
- https://blog.ynzen.com/

- Has a <meta name="viewport"> tag with width or initial-scaleok
Tested:
- https://blog.ynzen.com/

- font-sizeok
Tested:
- https://blog.ynzen.com/

- doctypeok
Tested:
- https://blog.ynzen.com/

- charsetok
Tested:
- https://blog.ynzen.com/

- js-librariesok
Tested:
- https://blog.ynzen.com/

- deprecationsok
Tested:
- https://blog.ynzen.com/

- third-party-cookiesok
Tested:
- https://blog.ynzen.com/

- errors-in-consoleok
Tested:
- https://blog.ynzen.com/

- valid-source-mapsok
Tested:
- https://blog.ynzen.com/

- No issues in the `Issues` panel in Chrome Devtoolsok
Tested:
- https://blog.ynzen.com/

- is-crawlableok
Tested:
- https://blog.ynzen.com/

- Document has a `<title>` elementok
Tested:
- https://blog.ynzen.com/

- meta-descriptionok
Tested:
- https://blog.ynzen.com/

- http-status-codeok
Tested:
- https://blog.ynzen.com/

- link-textok
Tested:
- https://blog.ynzen.com/

- crawlable-anchorsok
Tested:
- https://blog.ynzen.com/

- robots-txtok
Tested:
- https://blog.ynzen.com/

- Image elements have `[alt]` attributesok
Tested:
- https://blog.ynzen.com/

- hreflangok
Tested:
- https://blog.ynzen.com/

- canonicalok
Tested:
- https://blog.ynzen.com/

- Redirects HTTP traffic to HTTPSok
- structured-dataok

Accessibility section:
- Links should have a discernible nameerror
Tested:
- https://blog.ynzen.com/

- label-content-name-mismatcherror
Tested:
- https://blog.ynzen.com/

- `[aria-*]` attributes match their rolesok
Tested:
- https://blog.ynzen.com/

- Uses ARIA roles only on compatible elementsok
Tested:
- https://blog.ynzen.com/

- ARIA attributes are used as specified for the element's roleok
Tested:
- https://blog.ynzen.com/

- Deprecated ARIA roles were not usedok
Tested:
- https://blog.ynzen.com/

- `[aria-hidden="true"]` is not present on the document `<body>`ok
Tested:
- https://blog.ynzen.com/

- `[aria-hidden="true"]` elements do not contain focusable descendentsok
Tested:
- https://blog.ynzen.com/

- Elements use only permitted ARIA attributesok
Tested:
- https://blog.ynzen.com/

- `[role]`s have all required `[aria-*]` attributesok
Tested:
- https://blog.ynzen.com/

- `[role]` values are validok
Tested:
- https://blog.ynzen.com/

- `[aria-*]` attributes have valid valuesok
Tested:
- https://blog.ynzen.com/

- `[aria-*]` attributes are valid and not misspelledok
Tested:
- https://blog.ynzen.com/

- Buttons have an accessible nameok
Tested:
- https://blog.ynzen.com/

- Background and foreground colors have a sufficient contrast ratiook
Tested:
- https://blog.ynzen.com/

- Document has a `<title>` elementok
Tested:
- https://blog.ynzen.com/

- Heading elements appear in a sequentially-descending orderok
Tested:
- https://blog.ynzen.com/

- `<html>` element has a `[lang]` attributeok
Tested:
- https://blog.ynzen.com/

- `<html>` element has a valid value for its `[lang]` attributeok
Tested:
- https://blog.ynzen.com/

- Image elements have `[alt]` attributesok
Tested:
- https://blog.ynzen.com/

- Image elements do not have `[alt]` attributes that are redundant textok
Tested:
- https://blog.ynzen.com/

- `[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5ok
Tested:
- https://blog.ynzen.com/

- Touch targets have sufficient size and spacingok
Tested:
- https://blog.ynzen.com/

- landmark-one-mainok
Tested:
- https://blog.ynzen.com/

- accesskeysok
- aria-command-nameok
- aria-dialog-nameok
- aria-input-field-nameok
- aria-meter-nameok
- aria-progressbar-nameok
- Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required childrenok
- `[role]`s are contained by their required parent elementok
- aria-textok
- aria-toggle-field-nameok
- aria-tooltip-nameok
- aria-treeitem-nameok
- bypassok
- definition-listok
- dlitemok
- duplicate-id-ariaok
- form-field-multiple-labelsok
- frame-titleok
- html-xml-lang-mismatchok
- input-button-nameok
- input-image-altok
- labelok
- Links are distinguishable without relying on colorok
- Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`)ok
- List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elementsok
- meta-refreshok
- object-altok
- select-nameok
- skip-linkok
- tabindexok
- table-duplicate-nameok
- td-headers-attrok
- th-has-data-cellsok
- valid-langok
- video-captionok
- focusable-controlsok
- interactive-element-affordanceok
- logical-tab-orderok
- visual-order-follows-domok
- focus-trapsok
- managed-focusok
- use-landmarksok
- offscreen-content-hiddenok
- custom-controls-labelsok
- custom-controls-rolesok
- empty-headingok
- identical-links-same-purposeok
- table-fake-captionok
- td-has-headerok

Performance section:
- Time to Interactiveerror
Tested:
- https://blog.ynzen.com/

- Reduce unused JavaScripterror
Tested:
- https://blog.ynzen.com/

- Largest Contentful Paintwarning
Tested:
- https://blog.ynzen.com/

- Max Potential First Input Delaywarning
Tested:
- https://blog.ynzen.com/

- Properly size imageswarning
Tested:
- https://blog.ynzen.com/

- Reduce unused CSSwarning
Tested:
- https://blog.ynzen.com/

- Avoid serving legacy JavaScript to modern browserswarning
Tested:
- https://blog.ynzen.com/

- Use passive listeners to improve scrolling performancewarning
Tested:
- https://blog.ynzen.com/

- First Contentful Paintok
Tested:
- https://blog.ynzen.com/

- Total Blocking Timeok
Tested:
- https://blog.ynzen.com/

- Cumulative Layout Shiftok
Tested:
- https://blog.ynzen.com/

- Speed Indexok
Tested:
- https://blog.ynzen.com/

- Defer offscreen imagesok
Tested:
- https://blog.ynzen.com/

- Minify CSSok
Tested:
- https://blog.ynzen.com/

- Minify JavaScriptok
Tested:
- https://blog.ynzen.com/

- Efficiently encode imagesok
Tested:
- https://blog.ynzen.com/

- Serve images in next-gen formatsok
Tested:
- https://blog.ynzen.com/

- Enable text compressionok
Tested:
- https://blog.ynzen.com/

- Preconnect to required originsok
Tested:
- https://blog.ynzen.com/

- Initial server response time was shortok
Tested:
- https://blog.ynzen.com/

- Avoid multiple page redirectsok
Tested:
- https://blog.ynzen.com/

- Use video formats for animated contentok
Tested:
- https://blog.ynzen.com/

- Remove duplicate modules in JavaScript bundlesok
Tested:
- https://blog.ynzen.com/

- Avoids enormous network payloadsok
Tested:
- https://blog.ynzen.com/

- Serve static assets with an efficient cache policyok
Tested:
- https://blog.ynzen.com/

- Avoid an excessive DOM sizeok
Tested:
- https://blog.ynzen.com/

- critical-request-chainsok
Tested:
- https://blog.ynzen.com/

- user-timingsok
Tested:
- https://blog.ynzen.com/

- JavaScript execution timeok
Tested:
- https://blog.ynzen.com/

- Minimizes main-thread workok
Tested:
- https://blog.ynzen.com/

- All text remains visible during webfont loadsok
Tested:
- https://blog.ynzen.com/

- third-party-summaryok
Tested:
- https://blog.ynzen.com/

- Javascript, avoids `document.write()ok
Tested:
- https://blog.ynzen.com/

- Avoids long main-thread tasksok
Tested:
- https://blog.ynzen.com/

- Image elements have explicit `width` and `height`ok
Tested:
- https://blog.ynzen.com/

- Has a <meta name="viewport"> tag with width or initial-scaleok
Tested:
- https://blog.ynzen.com/

- Network Requestsok
Tested:
- https://blog.ynzen.com/

- Network Round Trip Timesok
Tested:
- https://blog.ynzen.com/

- Server Backend Latenciesok
Tested:
- https://blog.ynzen.com/

- Main thread tasksok
Tested:
- https://blog.ynzen.com/

- Diagnosticsok
Tested:
- https://blog.ynzen.com/

- Metricsok
Tested:
- https://blog.ynzen.com/

- Screenshot Thumbnailsok
Tested:
- https://blog.ynzen.com/

- final-screenshotok
Tested:
- https://blog.ynzen.com/

- script-treemap-dataok
Tested:
- https://blog.ynzen.com/

- resource-summaryok
Tested:
- https://blog.ynzen.com/

- first-meaningful-paintok
- Eliminate render-blocking resourcesok
- prioritize-lcp-imageok
- third-party-facadesok
- Largest Contentful Paint elementok
- lcp-lazy-loadedok
- Avoid large layout shiftsok
- non-composited-animationsok