Gz-yiheng.com Site Title

广州怡恒环保热力设备股份有限公司，建筑物空调设备

Gz-yiheng.com Meta Description

广州怡恒环保热力设备股份有限公司成立于1995年10月24日，注册地位于广州市经济技术开发区禾丰路63号，法定代表人为李明。经营范围包括工程项目管理服务;环保技术开发服务;建筑物空调设备、通风设备系统安装服务;节能技术开发服务;软件开发;电子自动化工程安装服务;工程环保设施施工;工业自动控制系统装置制造;技术进出口;节能技术转让服务;热力生产和供应;楼宇设备自控系统工程服务;锅炉及辅助设备制造;机电设备安装服务;商品信息咨询服务;能源技术研究、技术开发服务;节能技术推广服务;能源技术咨询服务;环保技术推广服务;建筑装饰及水暖管道零件制造;干燥设备制造;节能技术咨询、交流服务;环保技术转让服务;环境保护专用设备制造;管道设施安装服务（输油、输气、输水管道安装）;能源管理服务;制冷、空调设备制造;监控系统工程安装服务;建筑物采暖系统安装服务;商品批发贸易（许可审批类商品除外）;环保技术咨询、交流服务;货物进出口（专营专控商品除外）;建筑物排水系统安装服务;机电设备安装工程专业承包;商品零售贸易（许可审批类商品除外）;智能化安装工程服务;软件服务;金属压力容器制造;压力管道及配件的制造;金属包装容器制造;广州怡恒环保热力设备股份有限公司对外投资1家公司，具有18处分支机构。

Gz-yiheng.com Test Results

Gz-yiheng.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.
Properly size images
Potential savings of 2,576 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.
Largest Contentful Paint element
5,220 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint element
Serve images in next-gen formats
Potential savings of 735 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.
Reduce unused CSS
Potential savings of 19 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Efficiently encode images
Potential savings of 301 KiB
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.
Eliminate render-blocking resources
Potential savings of 0 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 static assets with an efficient cache policy
34 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
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
Avoid enormous network payloads
Total size was 3,637 KiB
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Max Potential First Input Delay
640 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.

Gz-yiheng.com Mobile SEO: 100/100
Quick overview:

Gz-yiheng.com Mobile Best Practices: 62/100
Quick overview:
Trust and Safety
Does not use HTTPS
34 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.
General
Uses deprecated APIs
1 warning found
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Gz-yiheng.com Mobile Accessibility: 74/100
Quick overview:
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.
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.
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.
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