Hdhbjt.com Site Title

环保工程_空气能采暖系统工程_空气能热水系统工程_甘肃宏德环保工程技术有限公司

Hdhbjt.com Meta Description

甘肃宏德环保工程技术有限公司成立于2014年09月09日，注册地位于甘肃省兰州市城关区南滨河东路5222号名城广场1幢3单元37层3717号房，法定代表人为奚玲珑。经营范围包括环保工程、空气能采暖系统工程、空气能热水系统工程、空气能工农业烘干系统工程、太阳能与空气能结合和复合能源供应系统工程、新风系统工程、采暖工程、污水处理工程、煤改电工程、煤改气工程、环保节能工程、光伏发电系统工程的咨询、设计、施工及维保；环境监测、工程技术咨询、环境影响咨询、安全评价咨询、节能评估咨询、职业病危害咨询；空气源热泵、空气能设备、太阳能热水设备、中央空调、空气调节净化设备、水处理系统及设备、太阳能灯具、光伏发电系统设备、锅炉及其附属设施、配件、新型节能炕、电采暖设备、脱硫脱硝设备、家用电器、卫浴洁具、燃气炉具的销售、安装、清洗、维修；仪器仪表、环保设备、酒店用品、建筑防腐保温材料、安防器材、电线电缆、五金交电的批发零售；新能源技术推广、技术咨询、技术服务；合同能源管理；家政服务；企业管理咨询；建筑装饰装修工程、体育场工程、亮化工程、绿化工程的设计及施工；监控设备的安装；智慧校园；多媒体教学设备及教学软件、刷卡系统软件的技术开发；健身器材、实验设备、教学设备、雕塑、LED显示屏、灯光音响设备、暖通设备、办公用品、计算机软硬件及周边设备、耗材的批发零售；报栏、图书的销售；国内各类广告的设计、制作、代理、发布。（依法须经批准的项目，经相关部门批准后方可开展经营活动）。

Hdhbjt.com Test Results

Hdhbjt.com Mobile Performance: 85/100
Quick overview:
Max Potential First Input Delay
360 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.
Tasks
Lists the toplevel main thread tasks that executed during page load.
Script Treemap Data
Used for treemap app
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.
Network Requests
Lists the network requests that were made during page load.
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.
Metrics
Collects all available metrics.
Final Screenshot
The last screenshot captured of the pageload.

1307379002748

Diagnostics
Collection of useful page vitals.

Hdhbjt.com Mobile SEO: 98/100
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
78% 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.

Hdhbjt.com Mobile Best Practices: 77/100
Quick overview:
Trust and Safety
Does not use HTTPS
16 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
Hdhbjt.com Mobile PWA: 38/100
Quick overview:
PWA Optimized
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.
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.
Hdhbjt.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.
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.
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.
Document has a main landmark.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
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.
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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