Access 12999.com.

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value7.4 s

27/100

10%

TBT (Total Blocking Time)

Value14,860 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value23.2 s

1/100

10%

12999.com

5067 ms

style.css

1009 ms

uaredirect.js

608 ms

c.js

788 ms

adsbygoogle.js

39 ms

Our browser made a total of 94 requests to load all elements on the main page. We found that 4% of them (4 requests) were addressed to the original 12999.com, 13% (12 requests) were made to Asearch.alicdn.com and 10% (9 requests) were made to Cpro.baidustatic.com. The less responsive or slowest element that took the longest time to load (11.8 sec) relates to the external source T11.baidu.com.

Content Size

2.0 MB

After Optimization

1.7 MB

In fact, the total size of 12999.com main page is 2.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 44.1 kB

Original 55.0 kB
After minification 51.5 kB
After compression 10.9 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 44.1 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 15.0 kB

Original 1.5 MB
After minification 1.5 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. 12999 images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 203.9 kB

Original 387.0 kB
After minification 386.8 kB
After compression 183.2 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 203.9 kB or 53% of the original size.

CSS Optimization

-61%

Potential reduce by 408 B

Original 664 B
After minification 547 B
After compression 256 B

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. 12999.com needs all CSS files to be minified and compressed as it can save up to 408 B or 61% of the original size.

Requests Now

After Optimization

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 12999. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

N/A
Language Claimed

N/A
Encoding

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 12999.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that 12999.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

12999.com

Open Graph description is not detected on the main page of 12999. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

Report Summary

Performance

Accessibility

Best Practices

SEO

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

12999.com

style.css

uaredirect.js

c.js

adsbygoogle.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

12999.com

style.css

uaredirect.js

c.js

adsbygoogle.js

logo.gif

uckm

f_login.php

uckm

ca-pub-0152124658937384.js

zrt_lookup.html

show_ads_impl.js

uckm

ex

h.js

ads

osd.js

1383386851191783190

abg.js

m_js_controller.js

googlelogo_color_112x36dp.png

s

x_button_blue2.png

Rf2QnA3orEL6Eez56HJgxRuQ77qJyxbefnbSCBE0iUQ.js

uckm

hm.gif

uckm

uckm

tanxssp.js

ex

activeview

cpro.js

adx.php

icon_12px.png

adx.php

reduce_bd-logo1_oper.png

adx.php

u=1841517956,2719391104&fm=76

u=1759108630,2631366665&fm=76

u=1716188853,2158927154&fm=76

bg.png

u=1926303315,2639749461&fm=76

u=1470008718,2008561125&fm=76

u=1515859740,2555366109&fm=76