Tools & Wizards About Us

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

category.alldatasheetcn.com

LED Datasheet(PDF) - SFH4281 - OSRAM GmbH

Page Load Speed

1.7 sec in total

First Response

252 ms

Resources Loaded

1.3 sec

Page Rendered

151 ms

About Website

Click here to check amazing Category All Datasheet Cn content for China. Otherwise, check out these important facts you probably never knew about category.alldatasheetcn.com

搜索关键字: LED. 部件名: SFH4281. 数据表: 70Kb/7P. 功能描述: Infrarot-LED, Infrared-LED. 制造商: OSRAM GmbH. 43,762 Results. 部件名: L5276_06. 数据表: 257Kb/2P. 制造商: Hamamatsu Corporation.

Visit category.alldatasheetcn.com

Key Findings

We analyzed Category.alldatasheetcn.com page load time and found that the first response time was 252 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

category.alldatasheetcn.com performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

71/100

25%

SI (Speed Index)

Value4.2 s

78/100

10%

TBT (Total Blocking Time)

Value690 ms

43/100

30%

CLS (Cumulative Layout Shift)

Value0.144

78/100

15%

TTI (Time to Interactive)

Value10.0 s

26/100

10%

Network Requests Diagram

252 ms

A.main.css+baneung.css,,qn==1+datasheet_view.css,,qn==1,Mcc.yvNu5rniAD.css.pagespeed.cf.9dy-RAeSR9.css

23 ms

gpt.js

151 ms

jquery-3.1.1.min.js.pagespeed.jm.SQZXth9lpM.js

23 ms

pub-0137114390088293

209 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Category.alldatasheetcn.com, 8% (5 requests) were made to Alldatasheetcn.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (530 ms) relates to the external source Search.supplyframe.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 123.5 kB (23%)

Content Size

536.8 kB

After Optimization

413.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Category.alldatasheetcn.com main page is 536.8 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. 50% of websites need less resources to load. Javascripts take 377.4 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 123.3 kB

  • Original 151.9 kB
  • After minification 150.3 kB
  • After compression 28.6 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 123.3 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 1 B

  • Original 5.3 kB
  • After minification 5.3 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. Category All Datasheet Cn images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 202 B

  • Original 377.4 kB
  • After minification 377.4 kB
  • After compression 377.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 6 B

  • Original 2.2 kB
  • After minification 2.2 kB
  • After compression 2.2 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. Category.alldatasheetcn.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 40 (70%)

Requests Now

57

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Category All Datasheet Cn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

category.alldatasheetcn.com accessibility score

100

Accessibility Issues

Best Practices

category.alldatasheetcn.com best practices score

58

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

category.alldatasheetcn.com SEO score

100

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Category.alldatasheetcn.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Chinese language. Our system also found out that Category.alldatasheetcn.com 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

Open Graph data is detected on the main page of Category All Datasheet Cn. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: