Jc-safe.com Site Title

广州吉辰安全科技有限公司 开发 消防设备

Jc-safe.com Meta Description

广州吉辰安全科技有限公司成立于2019年03月05日，注册地位于广州市番禺区新造镇思贤村沙园东街1号201，法定代表人为李鑫华。经营范围包括水处理的技术研究、开发;直饮水系统的研究、开发、设计;通信技术研究开发、技术服务;通信信号技术的研究开发;工程和技术研究和试验发展;建筑物电力系统安装;电子自动化工程安装服务;电子设备工程安装服务;智能化安装工程服务;消防设施工程设计与施工;建筑物空调设备、通风设备系统安装服务;直饮水系统的安装及售后服务;机电设备安装服务;水处理安装服务;安全技术防范系统设计、施工、维修;人防工程防护设备的安装;专用设备安装（电梯、锅炉除外）;医疗技术研发;电动机销售;通用机械设备销售;电气机械设备销售;仪器仪表批发;电子元器件批发;电子产品批发;环保设备批发;安全技术防范产品批发;安全技术防范产品零售;电子元器件零售;电子产品零售;信息技术咨询服务;安全系统监控服务;安全生产技术服务;技术服务(不含许可审批项目);建筑材料设计、咨询服务;电子产品设计服务;金属结构件设计服务;盾构机械设计服务;机械技术开发服务;电力电子技术服务;软件技术推广服务;环保技术开发服务;环保技术咨询、交流服务;环保技术转让服务;水处理技术转让服务;科技信息咨询服务;计量技术咨询服务;建筑工程、土木工程技术开发服务;建筑工程、土木工程技术咨询服务;通风设备销售;楼宇设备自控系统工程服务;洁净净化工程设计与施工;机械技术咨询、交流服务;机械技术转让服务;通信信号系统设备产品设计;计算机信息安全产品设计;机械配件批发;金属制品批发;专用设备销售;纯水冷却装置销售;消防设备、器材的批发;劳动防护用品批发;

Jc-safe.com Test Results

Jc-safe.com Mobile Performance: 96/100
Quick overview:
Tasks
Lists the toplevel main thread tasks that executed during page load.
Script Treemap Data
Used for treemap app
Final Screenshot
The last screenshot captured of the pageload.

258985056850

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.
Server Backend Latencies
450 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.
Metrics
Collects all available metrics.
Network Requests
Lists the network requests that were made during page load.

Jc-safe.com Mobile SEO: 99/100
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.
Tap targets are not sized appropriately
93% appropriately sized tap targets
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.

Jc-safe.com Mobile Best Practices: 77/100
Quick overview:
Trust and Safety
Does not use HTTPS
12 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
Jc-safe.com Mobile PWA: 38/100
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.
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
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.
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.
Jc-safe.com Mobile Accessibility: 78/100
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 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.
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.
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.
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.
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.
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