junsunchina.com - 西安骏尚电子科技有限公司|Bose音响陕西总代理|高端音视频系统集大成者|西安专业音响

Junsunchina.com Site Title

西安骏尚电子科技有限公司|Bose音响陕西总代理|高端音视频系统集大成者|西安专业音响

Junsunchina.com Meta Description

Junsunchina.com Test Results

Junsunchina.com Mobile Performance: 65/100

Quick overview:

Script Treemap Data

Used for treemap app

Network Round Trip Times

0 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.

Diagnostics

Collection of useful page vitals.

Final Screenshot

The last screenshot captured of the pageload.

216203284856

Metrics

Collects all available metrics.

Server Backend Latencies

0 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.

Network Requests

Lists the network requests that were made during page load.

Tasks

Lists the toplevel main thread tasks that executed during page load.

Junsunchina.com Mobile SEO: 58/100

Quick overview:

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. Learn how to make pages mobile-friendly.

Document doesn't use legible font sizes

Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px. Learn more about legible font sizes. Text is illegible because there's no viewport meta tag optimized for mobile screens.

Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`

A `<meta name="viewport">` not only optimizes your app for mobile screen sizes, but also prevents a 300 millisecond delay to user input. Learn more about using the viewport meta tag. No `<meta name="viewport">` tag found

Tap targets are not sized appropriately

Interactive elements like buttons and links should be large enough (48x48px), or have enough space around them, to be easy enough to tap without overlapping onto other elements. Learn more about tap targets. Tap targets are too small because there's no viewport meta tag optimized for mobile screens

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.

Crawling and Indexing

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

Links are not crawlable

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Junsunchina.com Mobile Best Practices: 67/100

Quick overview:

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.

Displays images with incorrect aspect ratio

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Trust and Safety

Does not use HTTPS

44 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.

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

General

Detected JavaScript libraries

All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.

Browser Compatibility

Page lacks the HTML doctype, thus triggering quirks-mode

Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration. Document contains a `doctype` that triggers `limited-quirks-mode`

Junsunchina.com Mobile PWA: 0/100

Quick overview:

PWA Optimized

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, No `<meta name="theme-color">` tag found.

Content is not sized correctly for the viewport

If the width of your app's content doesn't match the width of the viewport, your app might not be optimized for mobile screens. Learn how to size content for the viewport. The viewport size of 1001px does not match the window size of 412px.

Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`

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 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 about Service Workers.

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.

Junsunchina.com Mobile Accessibility: 42/100

Quick overview:

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

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

Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. Learn more about bypass blocks.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

List items (`<li>`) are not contained within `<ul>`, `<ol>` or `<menu>` parent elements.

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

`<html>` element does not have a `[lang]` attribute

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Similar tests

www.junsunchina.com
www.junsunchina.net
www.junsunchina.org
www.junsunchina.info
www.junsunchina.biz
www.junsunchina.us
www.junsunchina.mobi
www.unsunchina.com
www.junsunchina.com
www.nunsunchina.com
www.jnunsunchina.com
www.njunsunchina.com
www.hunsunchina.com
www.jhunsunchina.com
www.hjunsunchina.com
www.uunsunchina.com
www.juunsunchina.com
www.ujunsunchina.com
www.iunsunchina.com
www.jiunsunchina.com
www.ijunsunchina.com
www.kunsunchina.com
www.jkunsunchina.com
www.kjunsunchina.com
www.munsunchina.com
www.jmunsunchina.com
www.mjunsunchina.com
www.jnsunchina.com
www.jynsunchina.com
www.juynsunchina.com
www.jyunsunchina.com
www.jhnsunchina.com
www.juhnsunchina.com
www.jjnsunchina.com
www.jujnsunchina.com
www.jjunsunchina.com
www.jinsunchina.com
www.juinsunchina.com
www.jusunchina.com
www.jubsunchina.com
www.junbsunchina.com
www.jubnsunchina.com
www.juhsunchina.com
www.junhsunchina.com
www.jujsunchina.com
www.junjsunchina.com
www.jumsunchina.com
www.junmsunchina.com
www.jumnsunchina.com
www.jununchina.com
www.junwunchina.com
www.junswunchina.com
www.junwsunchina.com
www.juneunchina.com
www.junseunchina.com
www.junesunchina.com
www.jundunchina.com
www.junsdunchina.com
www.jundsunchina.com
www.junzunchina.com
www.junszunchina.com
www.junzsunchina.com
www.junxunchina.com
www.junsxunchina.com
www.junxsunchina.com
www.junaunchina.com
www.junsaunchina.com
www.junasunchina.com
www.junsnchina.com
www.junsynchina.com
www.junsuynchina.com
www.junsyunchina.com
www.junshnchina.com
www.junsuhnchina.com
www.junshunchina.com
www.junsjnchina.com
www.junsujnchina.com
www.junsjunchina.com
www.junsinchina.com
www.junsuinchina.com
www.junsiunchina.com
www.junsuchina.com
www.junsubchina.com
www.junsunbchina.com
www.junsubnchina.com
www.junsuhchina.com
www.junsunhchina.com
www.junsujchina.com
www.junsunjchina.com
www.junsumchina.com
www.junsunmchina.com
www.junsumnchina.com
www.junsunhina.com
www.junsunxhina.com
www.junsuncxhina.com
www.junsunxchina.com
www.junsundhina.com
www.junsuncdhina.com
www.junsundchina.com
www.junsunfhina.com
www.junsuncfhina.com
www.junsunfchina.com
www.junsunvhina.com
www.junsuncvhina.com
www.junsunvchina.com
www.junsuncina.com
www.junsuncbina.com
www.junsunchbina.com
www.junsuncbhina.com
www.junsuncgina.com
www.junsunchgina.com
www.junsuncghina.com
www.junsuncyina.com
www.junsunchyina.com
www.junsuncyhina.com
www.junsuncuina.com
www.junsunchuina.com
www.junsuncuhina.com
www.junsuncjina.com
www.junsunchjina.com
www.junsuncjhina.com
www.junsuncnina.com
www.junsunchnina.com
www.junsuncnhina.com
www.junsunchna.com
www.junsunchuna.com
www.junsunchiuna.com
www.junsunchjna.com
www.junsunchijna.com
www.junsunchkna.com
www.junsunchikna.com
www.junsunchkina.com
www.junsunchona.com
www.junsunchiona.com
www.junsunchoina.com
www.junsunchia.com
www.junsunchiba.com
www.junsunchinba.com
www.junsunchibna.com
www.junsunchiha.com
www.junsunchinha.com
www.junsunchihna.com
www.junsunchija.com
www.junsunchinja.com
www.junsunchima.com
www.junsunchinma.com
www.junsunchimna.com
www.junsunchin.com
www.junsunchinq.com
www.junsunchinaq.com
www.junsunchinqa.com
www.junsunchinw.com
www.junsunchinaw.com
www.junsunchinwa.com
www.junsunchins.com
www.junsunchinas.com
www.junsunchinsa.com
www.junsunchinz.com
www.junsunchinaz.com
www.junsunchinza.com
www.junsunchina.con