Dballedu.com Site Title
高达隆教育科技（广州）有限公司 广州教育科技
Dballedu.com Meta Description
高达隆教育科技（广州）有限公司成立于2021年02月07日，注册地位于广州市番禺区东环街番禺大道北555号天安总部中心25号楼2402室，法定代表人为陈莉梅。经营范围包括体验式拓展活动及策划;组织文化艺术交流活动;日用化学产品销售;游艺用品及室内游艺器材销售;人工智能硬件销售;电子专用设备销售;个人卫生用品销售;日用品销售;人力资源服务（不含职业中介活动、劳务派遣服务）;劳务服务（不含劳务派遣）;品牌管理;技术服务、技术开发、技术咨询、技术交流、技术转让、技术推广;信息技术咨询服务;网络技术服务;纸制品销售;物联网技术服务;信息咨询服务（不含许可类信息咨询服务）;从事科技培训的营利性民办培训机构（除面向中小学生开展的学科类、语言类文化教育培训）;教育教学检测和评价活动;教育咨询服务（不含涉许可审批的教育培训活动）;会议及展览服务;软件开发;咨询策划服务;市场营销策划;玩具、动漫及游艺用品销售;日用杂品销售;玩具销售;日用百货销售;家用电器销售;游艺及娱乐用品销售;电子产品销售;电器辅件销售;电子元器件与机电组件设备销售;电子专用材料销售;卫生用品和一次性使用医疗用品销售;办公用品销售;互联网销售（除销售需要许可的商品）;;职业中介活动;食品互联网销售;
Dballedu.com Test Results
Dballedu.com Mobile Performance: 85/100
Quick overview:
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.
Tasks
Lists the toplevel main thread tasks that executed during page load.
Metrics
Collects all available metrics.
Final Screenshot
The last screenshot captured of the pageload.
2069420236546
Network Requests
Lists the network requests that were made during page load.
Script Treemap Data
Used for treemap app
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.
Dballedu.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
92% 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.
Dballedu.com Mobile Best Practices: 77/100
Quick overview:
Trust and Safety
Does not use HTTPS
17 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
Dballedu.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.
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
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.
Dballedu.com Mobile Accessibility: 81/100
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.
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.
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.
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.
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