Ico.org.uk Home | ICO

Ico.org.uk Desktop Performance

ico.org.uk Desktop Performance

87/100

These metrics represent real-world Chrome users experience viewing ico.org.uk web page. Reports are focused on loading performance and other critical factors that most affect user experience. Follow our guide to track, optimize, and improve the quality of your web pages.

User Loading Experience

Largest Contentful Paint

First Contentful Paint

First Input Delay

Cumulative Layout Shift

Metrics

Speed Index45/100 2.4 s

Speed Index shows how quickly the contents of a page are visibly populated. Learn more.

Cumulative Layout Shift61/100 0.203

Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.

Largest Contentful Paint88/100 1.3 s

Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More

First Contentful Paint99/100 0.6 s

First Contentful Paint marks the time at which the first text or image is painted. Learn more.

Total Blocking Time100/100 0 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.

Time to Interactive100/100 0.6 s

Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.

Should Fix (12)

Opportunities

These suggestions can help your page load faster. They don't directly affect the Performance score.

Eliminate render-blocking resources

Potential savings of 290 ms

287 ms

Serve images in next-gen formats

Potential savings of 120 KiB

240 ms

Properly size images

Potential savings of 141 KiB

200 ms

Reduce initial server response time

Root document took 730 ms

129 ms

Remove unused JavaScript

Potential savings of 124 KiB

80 ms

Diagnostics

More information about the performance of your application. These numbers don't directly affect the Performance score.

Does not use passive listeners to improve scrolling performance

Ensure text remains visible during webfont load

Serve static assets with an efficient cache policy

5 resources found

Largest Contentful Paint element

1 element found

Avoid large layout shifts

5 elements found

Keep request counts low and transfer sizes small

28 requests • 510 KiB

Avoid chaining critical requests

6 chains found

Passed Audits (16)

JavaScript execution time

0.1 s

Avoids `document.write()`

Minify CSS

Avoids enormous network payloads

Total size was 510 KiB

Enable text compression

Minimizes main-thread work

0.5 s

Minimize third-party usage

Third-party code blocked the main thread for 0 ms

Minify JavaScript

Potential savings of 11 KiB

Remove unused CSS

Potential savings of 13 KiB

Defer offscreen images

Avoids an excessive DOM size

442 elements

Preconnect to required origins

Avoid multiple page redirects

Potential savings of 190 ms

Use video formats for animated content

Efficiently encode images

Potential savings of 42 KiB

Preload key requests

Ico.org.uk Desktop SEO

ico.org.uk Desktop SEO

70/100

These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. Learn more. Run these additional validators on your site to check additional SEO best practices.

Should Fix (3)

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Image elements do not have `[alt]` attributes

Document does not have a meta description

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Links are not crawlable

Passed Audits (7)

Links have descriptive text

Page isn’t blocked from indexing

Page has successful HTTP status code

Document avoids plugins

Document has a `<title>` element

Document has a valid `hreflang`

Has a `<meta name="viewport">` tag with `width` or `initial-scale`

Ico.org.uk Desktop Best Practices

ico.org.uk Desktop Best Practices

77/100

These checks highlight opportunities to improve the overall code health of ico.org.uk page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.

Should Fix (3)

Trust and Safety

Does not use HTTPS

1 insecure request found

Links to cross-origin destinations are unsafe

Includes front-end JavaScript libraries with known security vulnerabilities

5 vulnerabilities detected

Passed Audits (11)

Allows users to paste into password fields

Detected JavaScript libraries

Serves images with appropriate resolution

Avoids deprecated APIs

Avoids Application Cache

No browser errors logged to the console

Properly defines charset

Displays images with correct aspect ratio

Avoids requesting the notification permission on page load

Avoids requesting the geolocation permission on page load

Page has the HTML doctype

Ico.org.uk Desktop Progressive Web App

ico.org.uk Desktop Progressive Web App

44/100

These checks validate the aspects of a Progressive Web App. Learn more. These checks are required by the baseline PWA Checklist but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually.

Should Fix (9)

PWA Optimized

Manifest doesn't have a maskable icon

Is not configured for a custom splash screen

Does not set a theme color for the address bar.

Does not provide a valid `apple-touch-icon`

Installable

Does not use HTTPS

1 insecure request found

Does not register a service worker that controls page and `start_url`

Web app manifest does not meet the installability requirements

Fast and reliable

`start_url` does not respond with a 200 when offline

Current page does not respond with a 200 when offline

Passed Audits (4)

Contains some content when JavaScript is not available

Has a `<meta name="viewport">` tag with `width` or `initial-scale`

Page load is fast enough on mobile networks

Redirects HTTP traffic to HTTPS

Ico.org.uk Desktop Accessibility

ico.org.uk Desktop Accessibility

88/100

These checks highlight opportunities to improve the accessibility of your web app. Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged. These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.

Should Fix (2)

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Image elements do not have `[alt]` attributes

Best practices

These items highlight common accessibility best practices.

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.

Passed Audits (24)

`[aria-hidden="true"]` elements do not contain focusable descendents

`[accesskey]` values are unique

`[role]` values are valid

`[aria-*]` attributes have valid values

`[id]` attributes on active, focusable elements are unique

ARIA IDs are unique

Links have a discernible name

The page contains a heading, skip link, or landmark region

`[role]`s have all required `[aria-*]` attributes

`[aria-hidden="true"]` is not present on the document `<body>`

Document has a `<title>` element

`[aria-*]` attributes match their roles

Buttons have an accessible name

`<html>` element has a `[lang]` attribute

`<html>` element has a valid value for its `[lang]` attribute

No element has a `[tabindex]` value greater than 0

Background and foreground colors have a sufficient contrast ratio

Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements

`[role]`s are contained by their required parent element

`[aria-*]` attributes are valid and not misspelled

Heading elements appear in a sequentially-descending order

Form elements have associated labels

Ico.org.uk Desktop PageSpeed

Desktop Speed

76/100

These checks analyze the performance of ico.org.uk on desktop devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?

Should Fix (4)

Optimize images

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Minify JavaScript

Passed Audits (6)

Avoid landing page redirects

Enable compression

Reduce server response time

Minify CSS

Minify HTML

Prioritize visible content

Ico.org.uk Typos

www.ico.com
www.ico.net
www.ico.org
www.ico.info
www.ico.biz
www.ico.us
www.ico.mobi
www.co.org.uk
www.ico.org.uk
www.uco.org.uk
www.iuco.org.uk
www.uico.org.uk
www.jco.org.uk
www.ijco.org.uk
www.jico.org.uk
www.kco.org.uk
www.ikco.org.uk
www.kico.org.uk
www.oco.org.uk
www.ioco.org.uk
www.oico.org.uk
www.io.org.uk
www.ixo.org.uk
www.icxo.org.uk
www.ixco.org.uk
www.ido.org.uk
www.icdo.org.uk
www.idco.org.uk
www.ifo.org.uk
www.icfo.org.uk
www.ifco.org.uk
www.ivo.org.uk
www.icvo.org.uk
www.ivco.org.uk
www.ic.org.uk
www.ici.org.uk
www.icoi.org.uk
www.icio.org.uk
www.ick.org.uk
www.icok.org.uk
www.icko.org.uk
www.icl.org.uk
www.icol.org.uk
www.iclo.org.uk
www.icp.org.uk
www.icop.org.uk
www.icpo.org.uk

Ico.org.uk Home | ICO

Ico.org.uk Desktop Performance

User Loading Experience

Largest Contentful Paint

First Contentful Paint

First Input Delay

Cumulative Layout Shift

Metrics

Speed Index45/100 2.4 s

Cumulative Layout Shift61/100 0.203

Largest Contentful Paint88/100 1.3 s

First Contentful Paint99/100 0.6 s

Total Blocking Time100/100 0 ms

Time to Interactive100/100 0.6 s

Should Fix (12)

Opportunities

Diagnostics

Passed Audits (16)

Ico.org.uk Desktop SEO

Should Fix (3)

Content Best Practices

Crawling and Indexing

Passed Audits (7)

Ico.org.uk Desktop Best Practices

Should Fix (3)

Trust and Safety

Passed Audits (11)

Ico.org.uk Desktop Progressive Web App

Should Fix (9)

PWA Optimized

Installable

Fast and reliable

Passed Audits (4)

Ico.org.uk Desktop Accessibility

Should Fix (2)

Names and labels

Best practices

Passed Audits (24)

Ico.org.uk Desktop PageSpeed

Should Fix (4)

Passed Audits (6)

Ico.org.uk Typos

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