Jnzbai.com Site Title

防爆电气 母线桥 仪器仪表 郑州珠百电气有限公司

Jnzbai.com Meta Description

郑州珠百电气有限公司成立于2017年02月23日，注册地位于荥阳市广武镇车庄村，法定代表人为包富伟。经营范围包括生产：智能化配电成套装置（高低压开关柜、箱式变电站、配电箱）；销售：高低压开关柜、高低压电器元件、配电箱、变压器、电缆桥架、防爆电气、母线桥、仪器仪表、电线电缆；防腐工程、电力工程、水暖安装；环保设备、机械加工。

Jnzbai.com Test Results

Jnzbai.com Mobile Performance: 79/100
Quick overview:
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid large layout shifts
1 layout shift found
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS
Avoid multiple page redirects
Est savings of 1,460 ms
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Eliminate render-blocking resources
Est savings of 90 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.
Serve images in next-gen formats
Est savings of 17 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.
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
Serve static assets with an efficient cache policy
3 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
Efficiently encode images
Est savings of 12 KiB
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.
Optimize DOM size
A large DOM can increase the duration of style calculations and layout reflows, impacting page responsiveness. A large DOM will also increase memory usage. Learn how to avoid an excessive DOM size.
Use efficient cache lifetimes
Est savings of 41 KiB
A long cache lifetime can speed up repeat visits to your page. Learn more.
Document request latency
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
Render blocking requests
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Improve image delivery
Est savings of 9 KiB
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Layout shift culprits
Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Jnzbai.com Mobile SEO: 91/100
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.

Jnzbai.com Mobile Best Practices: 55/100
Quick overview:
General
Uses deprecated APIs
1 warning found
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Trust and Safety
Does not use HTTPS
7 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.
Does not redirect HTTP traffic to HTTPS
Make sure that you redirect all HTTP traffic to HTTPS in order to enable secure web features for all your users. Learn more.
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 must contain a doctype
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.
Jnzbai.com Mobile Accessibility: 53/100
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.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
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.
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 about the viewport meta tag.
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 sites
Similar tests
www.jnzbai.com
www.jnzbai.net
www.jnzbai.org
www.jnzbai.info
www.jnzbai.biz
www.jnzbai.us
www.jnzbai.mobi
www.nzbai.com
www.jnzbai.com
www.nnzbai.com
www.jnnzbai.com
www.njnzbai.com
www.hnzbai.com
www.jhnzbai.com
www.hjnzbai.com
www.unzbai.com
www.junzbai.com
www.ujnzbai.com
www.inzbai.com
www.jinzbai.com
www.ijnzbai.com
www.knzbai.com
www.jknzbai.com
www.kjnzbai.com
www.mnzbai.com
www.jmnzbai.com
www.mjnzbai.com
www.jzbai.com
www.jbzbai.com
www.jnbzbai.com
www.jbnzbai.com
www.jhzbai.com
www.jnhzbai.com
www.jjzbai.com
www.jnjzbai.com
www.jjnzbai.com
www.jmzbai.com
www.jnmzbai.com
www.jnbai.com
www.jnxbai.com
www.jnzxbai.com
www.jnxzbai.com
www.jnsbai.com
www.jnzsbai.com
www.jnszbai.com
www.jnabai.com
www.jnzabai.com
www.jnazbai.com
www.jnzai.com
www.jnzvai.com
www.jnzbvai.com
www.jnzvbai.com
www.jnzgai.com
www.jnzbgai.com
www.jnzgbai.com
www.jnzhai.com
www.jnzbhai.com
www.jnzhbai.com
www.jnznai.com
www.jnzbnai.com
www.jnznbai.com
www.jnzbi.com
www.jnzbqi.com
www.jnzbaqi.com
www.jnzbqai.com
www.jnzbwi.com
www.jnzbawi.com
www.jnzbwai.com
www.jnzbsi.com
www.jnzbasi.com
www.jnzbsai.com
www.jnzbzi.com
www.jnzbazi.com
www.jnzbzai.com
www.jnzba.com
www.jnzbau.com
www.jnzbaiu.com
www.jnzbaui.com
www.jnzbaj.com
www.jnzbaij.com
www.jnzbaji.com
www.jnzbak.com
www.jnzbaik.com
www.jnzbaki.com
www.jnzbao.com
www.jnzbaio.com
www.jnzbaoi.com
www.jnzbai.con
Last Tested: