Zcjc3.com Site Title

河南众成技术检测服务有限公司_环境检测_食品检测_产品检测

Zcjc3.com Meta Description

河南众成技术检测服务有限公司成立于2015年01月09日，注册地位于郑州高新技术产业开发区西三环路289号河南省国家大学科技园（东区）创新园1号楼西8单元4-7层，法定代表人为张进绰。经营范围包括环境检测；食品检测；产品检测；公共卫生检测；作业场所检测；水质及涉水产品检测；空调通风系统卫生检测；防雷设施检测；化妆品检测；日化产品检测；农、林、牧、渔业产品检测；药品检测；农兽药检测；放射性检测；化工原料及产品检测；基因检测；特种设备检测服务；节能环保技术服务；职业卫生技术服务；认证技术服务；检测技术咨询服务；计量认证服务。河南众成技术检测服务有限公司对外投资1家公司，具有1处分支机构。

Zcjc3.com Test Results

Zcjc3.com Desktop Performance: 84/100
Quick overview:
First Meaningful Paint
1.5 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric.
Tasks
Lists the toplevel main thread tasks that executed during page load.
Network Round Trip Times
10 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.

438525924928

Metrics
Collects all available metrics.
Network Requests
Lists the network requests that were made during page load.
Server Backend Latencies
570 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

Zcjc3.com Desktop SEO: 100/100
Quick overview:

Zcjc3.com Desktop Best Practices: 77/100
Quick overview:
Trust and Safety
Does not use HTTPS
13 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
Zcjc3.com Desktop PWA: 29/100
Quick overview:
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.
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.
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
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.
Zcjc3.com Desktop Accessibility: 83/100
Quick overview:
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.
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.
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.
Identical links have the same purpose.
Links with the same destination should have the same description, to help users understand the link's purpose and decide whether to follow it. Learn more about identical links.
Document has a main landmark.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
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.
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