Dedehr.com Site Title
山东SEO_山东企业SEO_山东德旭信息技术有限公司
Dedehr.com Meta Description
山东德旭信息技术有限公司成立于2013年04月22日，注册地位于山东省济南市历城区花园路168号二建融基大厦2103，法定代表人为温吉平。经营范围包括一般项目：技术服务、技术开发、技术咨询、技术交流、技术转让、技术推广；软件开发；计算机软硬件及辅助设备批发；计算机软硬件及辅助设备零售；广告设计、代理；企业管理咨询；市场营销策划；国内贸易代理；贸易经纪；网络与信息安全软件开发；网络技术服务；互联网安全服务；安全系统监控服务；安全技术防范系统设计施工服务；会议及展览服务；组织文化艺术交流活动；市场主体登记注册代理；日用品批发；日用品销售；代驾服务；停车场服务；小微型客车租赁经营服务；汽车拖车、求援、清障服务；电子产品销售；票务代理服务；旅客票务代理；外卖递送服务；人力资源服务（不含职业中介活动、劳务派遣服务）；汽车销售；新能源汽车整车销售；二手车经纪；国内货物运输代理。（除依法须经批准的项目外，凭营业执照依法自主开展经营活动）许可项目：建设工程施工；住宅室内装饰装修；基础电信业务；互联网信息服务；建筑智能化系统设计；建设工程设计；道路货物运输（网络货运）；保险代理业务；城市配送运输服务（不含危险货物）；第一类增值电信业务；第二类增值电信业务。（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，具体经营项目以相关部门批准文件或许可证件为准）山东德旭信息技术有限公司对外投资1家公司。
Dedehr.com Test Results
Dedehr.com Mobile Performance: 81/100
Quick overview:
Network Requests
Lists the network requests that were made during page load.
Metrics
Collects all available metrics.
Tasks
Lists the toplevel main thread tasks that executed during page load.
Server Backend Latencies
420 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
Diagnostics
Collection of useful page vitals.
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.
Final Screenshot
The last screenshot captured of the pageload.
11152403886
Dedehr.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
86% 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.
Dedehr.com Mobile Best Practices: 77/100
Quick overview:
Trust and Safety
Does not use HTTPS
8 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
Dedehr.com Mobile PWA: 38/100
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
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.
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.
Dedehr.com Mobile Accessibility: 80/100
Quick overview:
Document has a main landmark.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
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.
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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