Kopernik.org Site Title
Kopernik Observatory & Science Center – Welcome to the premier observatory and science center in New York State!
Kopernik.org Test Results
Kopernik.org Mobile Performance: 62/100
Quick overview:
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Reduce unused JavaScript
Potential savings of 200 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Reduce initial server response time
Root document took 710 ms
Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.
Eliminate render-blocking resources
Potential savings of 1,090 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn how to eliminate render-blocking resources.
Reduce the impact of third-party code
Third-party code blocked the main thread for 330 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact.
Minimize main-thread work
2.1 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Avoid multiple page redirects
Potential savings of 1,110 ms
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Reduce unused CSS
Potential savings of 86 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Serve images in next-gen formats
Potential savings of 133 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more about modern image formats.
Properly size images
Potential savings of 184 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.
Largest Contentful Paint element
4,870 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint element
Efficiently encode images
Potential savings of 5 KiB
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.
Serve static assets with an efficient cache policy
41 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
Avoid serving legacy JavaScript to modern browsers
Potential savings of 10 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers. Learn how to use modern JavaScript
Avoid an excessive DOM size
927 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows. Learn how to avoid an excessive DOM size.
Image elements do not have explicit `width` and `height`
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Minify CSS
Potential savings of 6 KiB
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Does not use passive listeners to improve scrolling performance
Consider marking your touch and wheel event listeners as `passive` to improve your page's scroll performance. Learn more about adopting passive event listeners.
Ensure text remains visible during webfont load
Leverage the `font-display` CSS feature to ensure text is user-visible while webfonts are loading. Learn more about `font-display`.
Time to Interactive
7.9 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Max Potential First Input Delay
180 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Kopernik.org Mobile SEO: 75/100
Quick overview:
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
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Links do not have descriptive text
4 links found
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Document does not have a meta description
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
Kopernik.org Mobile Best Practices: 62/100
Quick overview:
Trust and Safety
Does not use HTTPS
2 insecure requests found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.
General
Issues were logged in the `Issues` panel in Chrome Devtools
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Uses third-party cookies
1 cookie found
Support for third-party cookies will be removed in a future version of Chrome. Learn more about phasing out third-party cookies.
Kopernik.org Mobile Accessibility: 80/100
Quick overview:
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
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.
`<frame>` or `<iframe>` elements do not have a title
Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.
Image elements do not have `[alt]` attributes
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Links do not have a discernible name
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
`<dl>`'s do not contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
When definition lists are not properly marked up, screen readers may produce confusing or inaccurate output. Learn how to structure definition lists correctly.
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Best practices
These items highlight common accessibility best practices.
Touch targets do not have sufficient size or spacing.
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Similar sites
Similar tests
www.kopernik.com
www.kopernik.net
www.kopernik.org
www.kopernik.info
www.kopernik.biz
www.kopernik.us
www.kopernik.mobi
www.opernik.org
www.kopernik.org
www.jopernik.org
www.kjopernik.org
www.jkopernik.org
www.iopernik.org
www.kiopernik.org
www.ikopernik.org
www.mopernik.org
www.kmopernik.org
www.mkopernik.org
www.lopernik.org
www.klopernik.org
www.lkopernik.org
www.oopernik.org
www.koopernik.org
www.okopernik.org
www.kpernik.org
www.kipernik.org
www.koipernik.org
www.kkpernik.org
www.kokpernik.org
www.kkopernik.org
www.klpernik.org
www.kolpernik.org
www.kppernik.org
www.koppernik.org
www.kpopernik.org
www.koernik.org
www.kooernik.org
www.kopoernik.org
www.kolernik.org
www.koplernik.org
www.koprnik.org
www.kopwrnik.org
www.kopewrnik.org
www.kopwernik.org
www.kopsrnik.org
www.kopesrnik.org
www.kopsernik.org
www.kopdrnik.org
www.kopedrnik.org
www.kopdernik.org
www.koprrnik.org
www.koperrnik.org
www.koprernik.org
www.kopenik.org
www.kopeenik.org
www.koperenik.org
www.kopeernik.org
www.kopednik.org
www.koperdnik.org
www.kopefnik.org
www.koperfnik.org
www.kopefrnik.org
www.kopetnik.org
www.kopertnik.org
www.kopetrnik.org
www.koperik.org
www.koperbik.org
www.kopernbik.org
www.koperbnik.org
www.koperhik.org
www.kopernhik.org
www.koperhnik.org
www.koperjik.org
www.kopernjik.org
www.koperjnik.org
www.kopermik.org
www.kopernmik.org
www.kopermnik.org
www.kopernk.org
www.kopernuk.org
www.koperniuk.org
www.kopernuik.org
www.kopernjk.org
www.kopernijk.org
www.kopernkk.org
www.kopernikk.org
www.kopernkik.org
www.kopernok.org
www.koperniok.org
www.kopernoik.org
www.koperni.org
www.kopernij.org
www.kopernikj.org
www.kopernii.org
www.koperniki.org
www.koperniik.org
www.kopernim.org
www.kopernikm.org
www.kopernimk.org
www.kopernil.org
www.kopernikl.org
www.kopernilk.org
www.kopernio.org
www.koperniko.org
www.kopernik.net
www.kopernik.org
www.kopernik.info
www.kopernik.biz
www.kopernik.us
www.kopernik.mobi
www.opernik.org
www.kopernik.org
www.jopernik.org
www.kjopernik.org
www.jkopernik.org
www.iopernik.org
www.kiopernik.org
www.ikopernik.org
www.mopernik.org
www.kmopernik.org
www.mkopernik.org
www.lopernik.org
www.klopernik.org
www.lkopernik.org
www.oopernik.org
www.koopernik.org
www.okopernik.org
www.kpernik.org
www.kipernik.org
www.koipernik.org
www.kkpernik.org
www.kokpernik.org
www.kkopernik.org
www.klpernik.org
www.kolpernik.org
www.kppernik.org
www.koppernik.org
www.kpopernik.org
www.koernik.org
www.kooernik.org
www.kopoernik.org
www.kolernik.org
www.koplernik.org
www.koprnik.org
www.kopwrnik.org
www.kopewrnik.org
www.kopwernik.org
www.kopsrnik.org
www.kopesrnik.org
www.kopsernik.org
www.kopdrnik.org
www.kopedrnik.org
www.kopdernik.org
www.koprrnik.org
www.koperrnik.org
www.koprernik.org
www.kopenik.org
www.kopeenik.org
www.koperenik.org
www.kopeernik.org
www.kopednik.org
www.koperdnik.org
www.kopefnik.org
www.koperfnik.org
www.kopefrnik.org
www.kopetnik.org
www.kopertnik.org
www.kopetrnik.org
www.koperik.org
www.koperbik.org
www.kopernbik.org
www.koperbnik.org
www.koperhik.org
www.kopernhik.org
www.koperhnik.org
www.koperjik.org
www.kopernjik.org
www.koperjnik.org
www.kopermik.org
www.kopernmik.org
www.kopermnik.org
www.kopernk.org
www.kopernuk.org
www.koperniuk.org
www.kopernuik.org
www.kopernjk.org
www.kopernijk.org
www.kopernkk.org
www.kopernikk.org
www.kopernkik.org
www.kopernok.org
www.koperniok.org
www.kopernoik.org
www.koperni.org
www.kopernij.org
www.kopernikj.org
www.kopernii.org
www.koperniki.org
www.koperniik.org
www.kopernim.org
www.kopernikm.org
www.kopernimk.org
www.kopernil.org
www.kopernikl.org
www.kopernilk.org
www.kopernio.org
www.koperniko.org