Wfbbw.com Site Title
青岛维峰网络科技有限公司、青岛网站SEO
Wfbbw.com Meta Description
青岛维峰网络科技有限公司成立于2010年05月日，注册地位于青岛市市北区南福州北路138号418户，法定代表人为李织，经营范围包括一般经营项目:计算机软硬件开发，软件技术咨询、技术服务，技术转让，网络布线，网络工程设计、安装、维护，动画设计，平面设计，三维设计，多媒体设计，设计、制作、代理、发布国内广告业务，经济信息咨询，批发：计算机软硬件，电脑及配件、电子产品、办公耗材、通讯设备（不含卫星接收设备）、五金交电、日用百货、化妆品、服装鞋帽、针纺织品、建筑材料、金属材料（不含贵稀金属）、汽车配件。 （以上范围需经许可经营的，须凭许可证经营）。
Wfbbw.com Test Results
Wfbbw.com Mobile Performance: 100/100
Quick overview:
Max Potential First Input Delay
450 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.
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Properly size images
Potential savings of 442 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size 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 images in next-gen formats
Potential savings of 599 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.
Efficiently encode images
Potential savings of 279 KiB
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.
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
Serve static assets with an efficient cache policy
23 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
Wfbbw.com Mobile SEO: 100/100
Quick overview:
Wfbbw.com Mobile Best Practices: 79/100
Quick overview:
Trust and Safety
Does not use HTTPS
24 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.
Wfbbw.com Mobile Accessibility: 83/100
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.
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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