Sanduo123.com Site Title
软件系统定制开发_ERP软件定制开发_广州叁朵科技有限公司
Sanduo123.com Meta Description
广州叁朵科技有限公司成立于2018年06月04日，注册地位于广州市天河区中山大道中金鱼街1号D316房，法定代表人为邓玉龙。经营范围包括软件开发;信息系统集成服务;计算机房维护服务;信息技术咨询服务;贸易咨询服务;投资咨询服务;营养健康咨询服务;商品信息咨询服务;市场营销策划服务;交通运输咨询服务;能源技术咨询服务;广告业;计算机网络系统工程服务;计算机批发;计算机零配件批发;计算机零售;计算机零配件零售;计算机及通讯设备租赁;计算机技术开发、技术服务;计算机硬件的研究、开发;计算机房设计服务;计算机信息安全产品设计;计算机技术转让服务;计算机和辅助设备修理;汽车销售;汽车零配件批发;汽车充电模块销售;汽车零配件零售;汽车零售;汽车产业园的招商、开发、建设;汽车租赁;汽车援救服务;代办汽车年审、过户手续;代缴汽车违章罚款、车船税手续;汽车零配件设计服务;汽车维修工具设计服务;为电动汽车提供电池充电服务;运输设备清洗、消毒服务（汽车清洗除外）;二手车经纪;二手车销售;互联网商品销售（许可审批类商品除外）;互联网商品零售（许可审批类商品除外）;货物进出口（专营专控商品除外）;技术进出口;汽车修理与维护;汽车清洗服务;汽车驾驶员培训;旧机动车鉴定评估（含涉案、事故车辆鉴定等评估业务）;进出口商品检验鉴定(具体经营项目以《进出口商品检验鉴定机构资格证书》载明为准);广州叁朵科技有限公司对外投资1家公司。
Sanduo123.com Test Results
Sanduo123.com Mobile Performance: 65/100
Quick overview:
First Meaningful Paint
2.9 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric.
Final Screenshot
The last screenshot captured of the pageload.
962809902730
Diagnostics
Collection of useful page vitals.
Network Round Trip Times
10 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.
Script Treemap Data
Used for treemap app
Metrics
Collects all available metrics.
Server Backend Latencies
400 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.
Tasks
Lists the toplevel main thread tasks that executed during page load.
Network Requests
Lists the network requests that were made during page load.
Sanduo123.com Mobile SEO: 94/100
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
21% 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.
Sanduo123.com Mobile Best Practices: 73/100
Quick overview:
Trust and Safety
Does not use HTTPS
15 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
General
Registers an `unload` listener
The `unload` event does not fire reliably and listening for it can prevent browser optimizations like the Back-Forward Cache. Use `pagehide` or `visibilitychange` events instead. Learn more about unload event listeners
Detected JavaScript libraries
All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.
Sanduo123.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.
Sanduo123.com Mobile Accessibility: 71/100
Quick overview:
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.
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.
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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