Tools & Wizards About Us
sanv.org screenshot

Report Summary

  • 67

    Performance

    Renders faster than
    80% of other websites

  • 44

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

sanv.org

三维导航 - 您专属的书签网址管理中心，聚合国内外网站导航，致力于为您提供便捷的网址导航

Page Load Speed

29.7 sec in total

First Response

1.6 sec

Resources Loaded

27.9 sec

Page Rendered

220 ms

sanv.org screenshot

About Website

Visit sanv.org now to see the best up-to-date Sanv content for China and also check out these interesting facts you probably never knew about sanv.org

三维聚合导航,您专属的网址书签管理中心,聚合国内外冷热门常用网址,为您提供最便捷的网站导航!收集有趣有用的网站,无广告无病毒,欢迎使用!

Visit sanv.org

Key Findings

We analyzed Sanv.org page load time and found that the first response time was 1.6 sec and then it took 28.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

sanv.org performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

93/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value1,540 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.039

100/100

15%

TTI (Time to Interactive)

Value5.0 s

77/100

10%

Network Requests Diagram

sanv.org

1582 ms

300.lu

8162 ms

autoptimize_c3b498abb7f2b56e31691313aae54035.css

771 ms

autoptimize_a9dc1df2731f967226fa4568857ac187.css

1056 ms

home.png

1239 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Sanv.org, 89% (41 requests) were made to 300.lu and 2% (1 request) were made to S19.cnzz.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source 300.lu.

Page Optimization Overview & Recommendations

Page size can be reduced by 155.9 kB (54%)

Content Size

288.1 kB

After Optimization

132.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sanv.org main page is 288.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Javascripts take 111.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 52.2 kB

  • Original 65.9 kB
  • After minification 65.7 kB
  • After compression 13.7 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 52.2 kB or 79% of the original size.

Image Optimization

-12%

Potential reduce by 9.5 kB

  • Original 82.0 kB
  • After minification 72.5 kB

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. Obviously, Sanv needs image optimization as it can save up to 9.5 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 72.3 kB

  • Original 111.9 kB
  • After minification 111.0 kB
  • After compression 39.6 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 72.3 kB or 65% of the original size.

CSS Optimization

-77%

Potential reduce by 22.0 kB

  • Original 28.4 kB
  • After minification 28.4 kB
  • After compression 6.4 kB

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. Sanv.org needs all CSS files to be minified and compressed as it can save up to 22.0 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (26%)

Requests Now

43

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sanv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sanv.org

sanv.org

1582 ms

300.lu

300.lu

8162 ms

autoptimize_c3b498abb7f2b56e31691313aae54035.css

autoptimize_c3b498abb7f2b56e31691313aae54035.css

771 ms

autoptimize_a9dc1df2731f967226fa4568857ac187.css

autoptimize_a9dc1df2731f967226fa4568857ac187.css

1056 ms

home.png

home.png

1239 ms

bg.png

bg.png

382 ms

sologo.png

sologo.png

1652 ms

goo.png

goo.png

582 ms

fbook1.png

fbook1.png

901 ms

twi.png

twi.png

3843 ms

googlescholar1.png

googlescholar1.png

3225 ms

yout.png

yout.png

12581 ms

gplus.png

gplus.png

1286 ms

yahoo.png

yahoo.png

1690 ms

msn1.png

msn1.png

20283 ms

linkedin1.png

linkedin1.png

2175 ms

vimeo.png

vimeo.png

2637 ms

zaobao.png

zaobao.png

2610 ms

reuters.png

reuters.png

3055 ms

bbc1.png

bbc1.png

3207 ms

baidu2.png

baidu2.png

3484 ms

haosou.png

haosou.png

3779 ms

goo1.png

goo1.png

5945 ms

dropbox.png

dropbox.png

3934 ms

ufo.jpg

ufo.jpg

4375 ms

soundcloud.jpg

soundcloud.jpg

4362 ms

instagram1.jpg

instagram1.jpg

4377 ms

tumblr.jpg

tumblr.jpg

4794 ms

nytimes.png

nytimes.png

4948 ms

nextmedia1.png

nextmedia1.png

4782 ms

asahi.png

asahi.png

5178 ms

rthk.png

rthk.png

5209 ms

tv.jpg

tv.jpg

5515 ms

1234567.jpg

1234567.jpg

5559 ms

300.lu

300.lu

7752 ms

LOFTER.jpg

LOFTER.jpg

6106 ms

rss.png

rss.png

5971 ms

jquery-1.8.2.min.js

jquery-1.8.2.min.js

11463 ms

common.js

common.js

4945 ms

cesu.png

cesu.png

6304 ms

520ant.png

520ant.png

5356 ms

gototop.png

gototop.png

5777 ms

stat.php

stat.php

2391 ms

stat.htm

stat.htm

194 ms

core.php

core.php

636 ms

online_v3.php

online_v3.php

2167 ms

Accessibility Review

sanv.org accessibility score

44

Accessibility Issues

ARIA

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.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

High

[role] values are not valid

High

[aria-*] attributes do not have valid values

High

ARIA IDs are not unique

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.

Impact

Issue

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

Internationalization and localization

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

Impact

Issue

High

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

Tables and lists

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

Impact

Issue

High

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

sanv.org best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

sanv.org SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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 more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sanv.org can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Sanv.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

sanv.org

Open Graph description is not detected on the main page of Sanv. 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: