Sleeper.app Site Title

Sleeper - Fantasy Football, Basketball, Esports, and Daily Fantasy Sports

Sleeper.app Meta Description

Start a fantasy football, basketball, or esports league today on Sleeper. Enjoy sports with friends.

Sleeper.app Test Results

Sleeper.app Mobile Performance: 33/100
Quick overview:
Time to Interactive
36.4 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
470 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.
First Meaningful Paint
5.4 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric.
Final Screenshot
The last screenshot captured of the pageload.

703969106776

Metrics
Collects all available metrics.
Tasks
Lists the toplevel main thread tasks that executed during page load.
Server Backend Latencies
390 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance. Learn more about server response time.
Script Treemap Data
Used for treemap app
Diagnostics
Collection of useful page vitals.
Network Requests
Lists the network requests that were made during page load.
Network Round Trip Times
210 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance. Learn more about the Round Trip Time.

Sleeper.app Mobile SEO: 92/100
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.

Sleeper.app Mobile Best Practices: 68/100
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 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.
Ensure CSP is effective against XSS attacks
A strong Content Security Policy (CSP) significantly reduces the risk of cross-site scripting (XSS) attacks. Learn how to use a CSP to prevent XSS
User Experience
Serves images with low resolution
Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.
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.
Detected JavaScript libraries
All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.
Sleeper.app Mobile PWA: 38/100
Quick overview:
PWA Optimized
Is not configured for a custom splash screen
A themed splash screen ensures a high-quality experience when users launch your app from their homescreens. Learn more about splash screens. Failures: No manifest was fetched.
Does not set a theme color for the address bar.
The browser address bar can be themed to match your site. Learn more about theming the address bar. Failures: No manifest was fetched.
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 about maskable manifest icons. No manifest was fetched
Installable
Web app manifest or service worker do not meet the installability requirements
1 reason
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. With proper service worker and manifest implementations, browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement. Learn more about manifest installability requirements.
Sleeper.app Mobile Accessibility: 77/100
Quick overview:
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
`[aria-*]` attributes are not valid or misspelled
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn more about valid ARIA attributes.
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 have `[alt]` attributes that are redundant text.
Informative elements should aim for short, descriptive alternative text. Alternative text that is exactly the same as the text adjacent to the link or image is potentially confusing for screen reader users, because the text will be read twice. Learn more about the `alt` attribute.
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.
Document has a main landmark.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
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.
Similar sites
Similar tests
www.sleeper.com
www.sleeper.net
www.sleeper.org
www.sleeper.info
www.sleeper.biz
www.sleeper.us
www.sleeper.mobi
www.leeper.app
www.sleeper.app
www.wleeper.app
www.swleeper.app
www.wsleeper.app
www.eleeper.app
www.seleeper.app
www.esleeper.app
www.dleeper.app
www.sdleeper.app
www.dsleeper.app
www.zleeper.app
www.szleeper.app
www.zsleeper.app
www.xleeper.app
www.sxleeper.app
www.xsleeper.app
www.aleeper.app
www.saleeper.app
www.asleeper.app
www.seeper.app
www.speeper.app
www.slpeeper.app
www.spleeper.app
www.soeeper.app
www.sloeeper.app
www.soleeper.app
www.skeeper.app
www.slkeeper.app
www.skleeper.app
www.sleper.app
www.slweper.app
www.sleweper.app
www.slweeper.app
www.slseper.app
www.sleseper.app
www.slseeper.app
www.sldeper.app
www.sledeper.app
www.sldeeper.app
www.slreper.app
www.slereper.app
www.slreeper.app
www.slewper.app
www.sleewper.app
www.slesper.app
www.sleesper.app
www.sledper.app
www.sleedper.app
www.slerper.app
www.sleerper.app
www.sleeer.app
www.sleeoer.app
www.sleepoer.app
www.sleeoper.app
www.sleeler.app
www.sleepler.app
www.sleelper.app
www.sleepr.app
www.sleepwr.app
www.sleepewr.app
www.sleepwer.app
www.sleepsr.app
www.sleepesr.app
www.sleepser.app
www.sleepdr.app
www.sleepedr.app
www.sleepder.app
www.sleeprr.app
www.sleeperr.app
www.sleeprer.app
www.sleepe.app
www.sleepee.app
www.sleepere.app
www.sleepeer.app
www.sleeped.app
www.sleeperd.app
www.sleepef.app
www.sleeperf.app
www.sleepefr.app
www.sleepet.app
www.sleepert.app
www.sleepetr.app
Last Tested: