Blankjazz.org Site Title

Jazzmusiker und Jazzprojekte only!

Blankjazz.org Meta Description

Website-Baukasten und Termine abstimmen nur für Jazzer und Ensembles.

Blankjazz.org Test Results

Blankjazz.org Mobile Performance: 34/100
Quick overview:
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Eliminate render-blocking resources. Potential savings of 5,730 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn more.
Remove unused JavaScript. Potential savings of 404 KiB
Remove unused JavaScript to reduce bytes consumed by network activity. Learn more.
Properly size images. Potential savings of 210 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn more.
Serve images in next-gen formats. Potential savings of 128 KiB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more.
Reduce initial server response time. Root document took 770 ms
Keep the server response time for the main document short because all other requests depend on it. Learn more.
Remove unused CSS. Potential savings of 21 KiB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity. Learn more.
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Replace unnecessarily large JavaScript libraries
1 large library found
Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size. Learn more.
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.
Minimize main-thread work
2.2 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn more
Reduce JavaScript execution time
1.5 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn more.
Avoid long main-thread tasks
1 long task found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn more
Largest Contentful Paint element
1 element found
This is the largest contentful element painted within the viewport. Learn More
Keep request counts low and transfer sizes small
23 requests • 1,103 KiB
To set budgets for the quantity and size of page resources, add a budget.json file. Learn more.
Avoid large layout shifts
4 elements found
These DOM elements contribute most to the CLS of the page.
Avoid chaining critical requests
7 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Learn more.

Blankjazz.org Mobile SEO: 100/100
Quick overview:

Blankjazz.org Mobile Best Practices: 79/100
Quick overview:
Trust and Safety
Does not use HTTPS
1 insecure request 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 servedover 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.
Links to cross-origin destinations are unsafe
Add `rel="noopener"` or `rel="noreferrer"` to any external links to improve performance and prevent security vulnerabilities. Learn more.
Includes front-end JavaScript libraries with known security vulnerabilities
16 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers. Learn more.
General
Missing source maps for large first-party JavaScript
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more.
Blankjazz.org Mobile Progressive Web App: 57/100
Quick overview:
PWA Optimized
Manifest doesn't have a maskable icon
A maskable icon ensures that the image fills the entire shape without being letterboxed when installing the app on a device. Learn more.
Installable
Does not use HTTPS
1 insecure request 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 servedover 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.
Does not register a service worker that controls page and `start_url`
The service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. Learn more.
Web app manifest does not meet the installability requirements
Browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement. Learn more. Failures: Manifest does not have `short_name`.
Fast and reliable
`start_url` does not respond with a 200 when offline
A service worker enables your web app to be reliable in unpredictable network conditions. Learn more. The start_url did respond, but not via a service worker.
Current page does not respond with a 200 when offline
If you're building a Progressive Web App, consider using a service worker so that your app can work offline. Learn more.
Blankjazz.org Mobile Accessibility: 77/100
Quick overview:
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 more.
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.
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more.
Similar tests
www.blankjazz.com
www.blankjazz.net
www.blankjazz.org
www.blankjazz.info
www.blankjazz.biz
www.blankjazz.us
www.blankjazz.mobi
www.lankjazz.org
www.blankjazz.org
www.vlankjazz.org
www.bvlankjazz.org
www.vblankjazz.org
www.glankjazz.org
www.bglankjazz.org
www.gblankjazz.org
www.hlankjazz.org
www.bhlankjazz.org
www.hblankjazz.org
www.nlankjazz.org
www.bnlankjazz.org
www.nblankjazz.org
www.bankjazz.org
www.bpankjazz.org
www.blpankjazz.org
www.bplankjazz.org
www.boankjazz.org
www.bloankjazz.org
www.bolankjazz.org
www.bkankjazz.org
www.blkankjazz.org
www.bklankjazz.org
www.blnkjazz.org
www.blqnkjazz.org
www.blaqnkjazz.org
www.blqankjazz.org
www.blwnkjazz.org
www.blawnkjazz.org
www.blwankjazz.org
www.blsnkjazz.org
www.blasnkjazz.org
www.blsankjazz.org
www.blznkjazz.org
www.blaznkjazz.org
www.blzankjazz.org
www.blakjazz.org
www.blabkjazz.org
www.blanbkjazz.org
www.blabnkjazz.org
www.blahkjazz.org
www.blanhkjazz.org
www.blahnkjazz.org
www.blajkjazz.org
www.blanjkjazz.org
www.blajnkjazz.org
www.blamkjazz.org
www.blanmkjazz.org
www.blamnkjazz.org
www.blanjazz.org
www.blanjjazz.org
www.blankjjazz.org
www.blanijazz.org
www.blankijazz.org
www.blanikjazz.org
www.blanmjazz.org
www.blankmjazz.org
www.blanljazz.org
www.blankljazz.org
www.blanlkjazz.org
www.blanojazz.org
www.blankojazz.org
www.blanokjazz.org
www.blankazz.org
www.blanknazz.org
www.blankjnazz.org
www.blanknjazz.org
www.blankhazz.org
www.blankjhazz.org
www.blankhjazz.org
www.blankuazz.org
www.blankjuazz.org
www.blankujazz.org
www.blankiazz.org
www.blankjiazz.org
www.blankkazz.org
www.blankjkazz.org
www.blankkjazz.org
www.blankmazz.org
www.blankjmazz.org
www.blankjzz.org
www.blankjqzz.org
www.blankjaqzz.org
www.blankjqazz.org
www.blankjwzz.org
www.blankjawzz.org
www.blankjwazz.org
www.blankjszz.org
www.blankjaszz.org
www.blankjsazz.org
www.blankjzzz.org
www.blankjazzz.org
www.blankjzazz.org
www.blankjaz.org
www.blankjaxz.org
www.blankjazxz.org
www.blankjaxzz.org
www.blankjasz.org
www.blankjazsz.org
www.blankjaaz.org
www.blankjazaz.org
www.blankjaazz.org
www.blankjazx.org
www.blankjazzx.org
www.blankjazs.org
www.blankjazzs.org
www.blankjaza.org
www.blankjazza.org
Last Tested:

This website uses cookies to ensure you get the best experience on our website. Learn more. Got it.