Tools & Wizards About Us
datasheet4u.net screenshot

Report Summary

  • 62

    Performance

    Renders faster than
    77% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

datasheet4u.net

Datasheet4U.com - 900,000+ Datasheet Search Site

Page Load Speed

5.6 sec in total

First Response

911 ms

Resources Loaded

4.3 sec

Page Rendered

372 ms

datasheet4u.net screenshot

About Website

Welcome to datasheet4u.net homepage info - get ready to check Datasheet4U best content right away, or after learning these important things about datasheet4u.net

900,000+ Datasheet Search Site. Dataheet4U offers most rated semiconductor datasheet pdf.

Visit datasheet4u.net

Key Findings

We analyzed Datasheet4u.net page load time and found that the first response time was 911 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

datasheet4u.net performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value4.9 s

64/100

10%

TBT (Total Blocking Time)

Value530 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.7 s

29/100

10%

Network Requests Diagram

datasheet4u.net

911 ms

www.datasheet4u.com

1606 ms

css.css

457 ms

4U.js

515 ms

gpt.js

6 ms

Our browser made a total of 125 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Datasheet4u.net, 34% (43 requests) were made to Datasheet.smilecast.co.kr and 7% (9 requests) were made to Pixel-geo.prfct.co. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Datasheet4u.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 207.0 kB (29%)

Content Size

708.5 kB

After Optimization

501.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Datasheet4u.net main page is 708.5 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. 65% of websites need less resources to load. Images take 317.8 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 75.6 kB

  • Original 107.4 kB
  • After minification 107.3 kB
  • After compression 31.9 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 75.6 kB or 70% of the original size.

Image Optimization

-1%

Potential reduce by 4.3 kB

  • Original 317.8 kB
  • After minification 313.5 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. Datasheet4U images are well optimized though.

JavaScript Optimization

-45%

Potential reduce by 125.4 kB

  • Original 280.6 kB
  • After minification 279.8 kB
  • After compression 155.2 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 125.4 kB or 45% of the original size.

CSS Optimization

-64%

Potential reduce by 1.7 kB

  • Original 2.7 kB
  • After minification 2.4 kB
  • After compression 972 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. Datasheet4u.net needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 64% of the original size.

Requests Breakdown

Number of requests can be reduced by 61 (51%)

Requests Now

119

After Optimization

58

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 119 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Datasheet4U. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

datasheet4u.net

datasheet4u.net

911 ms

www.datasheet4u.com

www.datasheet4u.com

1606 ms

css.css

css.css

457 ms

4U.js

4U.js

515 ms

gpt.js

gpt.js

6 ms

search.js

search.js

535 ms

search.css

search.css

606 ms

platform.js

platform.js

63 ms

in.js

in.js

23 ms

conversion.js

conversion.js

14 ms

back.jpg

back.jpg

238 ms

logo-pdf.gif

logo-pdf.gif

240 ms

bar.gif

bar.gif

171 ms

btn_sch02.gif

btn_sch02.gif

172 ms

Sanyo.gif

Sanyo.gif

173 ms

pdf_pdf.gif

pdf_pdf.gif

173 ms

Infineon.gif

Infineon.gif

236 ms

Shunye.gif

Shunye.gif

236 ms

Silergy.gif

Silergy.gif

237 ms

Linear.gif

Linear.gif

238 ms

UTC.gif

UTC.gif

340 ms

Central%20Semiconductor.gif

Central%20Semiconductor.gif

340 ms

Rohm.gif

Rohm.gif

383 ms

Texas%20Instruments.gif

Texas%20Instruments.gif

301 ms

STMicroelectronics.gif

STMicroelectronics.gif

337 ms

Vishay.gif

Vishay.gif

338 ms

Microsemi.gif

Microsemi.gif

391 ms

Maxim%20Integrated.gif

Maxim%20Integrated.gif

390 ms

National%20Semiconductor.gif

National%20Semiconductor.gif

390 ms

Microchip.gif

Microchip.gif

390 ms

Renesas.gif

Renesas.gif

462 ms

ON%20Semiconductor.gif

ON%20Semiconductor.gif

463 ms

Fairchild%20Semiconductor.gif

Fairchild%20Semiconductor.gif

471 ms

Analog%20Devices.gif

Analog%20Devices.gif

471 ms

NXP.gif

NXP.gif

471 ms

ROHM.gif

ROHM.gif

555 ms

Cypress%20Semiconductor.gif

Cypress%20Semiconductor.gif

555 ms

Panasonic.gif

Panasonic.gif

554 ms

IDT.gif

IDT.gif

558 ms

Infineon%20Technologies.gif

Infineon%20Technologies.gif

557 ms

ATMEL.gif

ATMEL.gif

557 ms

Linear%20Technology.gif

Linear%20Technology.gif

618 ms

Intersil.gif

Intersil.gif

616 ms

DIODES.gif

DIODES.gif

617 ms

International%20Rectifier.gif

International%20Rectifier.gif

619 ms

gtm.js

gtm.js

51 ms

pubads_impl_82.js

pubads_impl_82.js

11 ms

ads

ads

81 ms

container.html

container.html

16 ms

dc.js

dc.js

32 ms

Freescale.gif

Freescale.gif

543 ms

__utm.gif

__utm.gif

34 ms

imgad

imgad

74 ms

SearchNowButton.png

SearchNowButton.png

463 ms

imgad

imgad

59 ms

imgad

imgad

72 ms

bg_window03.gif

bg_window03.gif

469 ms

osd.js

osd.js

53 ms

Taiwan%20Semiconductor.gif

Taiwan%20Semiconductor.gif

460 ms

logo-0pdf.gif

logo-0pdf.gif

530 ms

top_back.gif

top_back.gif

527 ms

main_back_29.jpg

main_back_29.jpg

998 ms

all.js

all.js

215 ms

widgets.js

widgets.js

54 ms

secureAnonymousFramework

secureAnonymousFramework

65 ms

MAX232

MAX232

222 ms

ads

ads

86 ms

search.gif

search.gif

465 ms

coming%20soon.gif

coming%20soon.gif

462 ms

share

share

71 ms

sprite_connect_v14.png

sprite_connect_v14.png

156 ms

728x90_TL3215.jpg

728x90_TL3215.jpg

146 ms

sbhK2lTE.js

sbhK2lTE.js

36 ms

142 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

21 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

28 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

84 ms

sharebutton

sharebutton

129 ms

cTrvNaRi.html

cTrvNaRi.html

39 ms

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

71 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

82 ms

adjs.php

adjs.php

142 ms

199 ms

postmessageRelay

postmessageRelay

126 ms

xd_arbiter.php

xd_arbiter.php

173 ms

xd_arbiter.php

xd_arbiter.php

319 ms

rs=AGLTcCPeW_yxohM6d2vzOu9_v18SNdO9Aw

rs=AGLTcCPeW_yxohM6d2vzOu9_v18SNdO9Aw

38 ms

rs=AGLTcCNEeBXwi31Sa43CyaFD4uWCwotgXw

rs=AGLTcCNEeBXwi31Sa43CyaFD4uWCwotgXw

73 ms

134 ms

bdHGHleUa-ndQCOrdpfxfw.ttf

bdHGHleUa-ndQCOrdpfxfw.ttf

126 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

135 ms

jot

jot

117 ms

Tektronix-IPOB-MDO4000C-TABLE.gif

Tektronix-IPOB-MDO4000C-TABLE.gif

49 ms

ga.js

ga.js

21 ms

fc.php

fc.php

49 ms

49 ms

lg.php

lg.php

19 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

29 ms

rpc:shindig_random.js

rpc:shindig_random.js

41 ms

5266e87c5dd5ca039c00002d.js

5266e87c5dd5ca039c00002d.js

55 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

3 ms

40 ms

tagjs

tagjs

27 ms

54 ms

adsct

adsct

133 ms

Pug

Pug

109 ms

cb

cb

56 ms

tap.php

tap.php

18 ms

cb

cb

29 ms

ncm

ncm

28 ms

cb

cb

4 ms

img

img

66 ms

sd

sd

79 ms

__utm.gif

__utm.gif

13 ms

73 ms

37 ms

33 ms

90 ms

77 ms

77 ms

__utm.gif

__utm.gif

22 ms

13 ms

like.php

like.php

77 ms

TY3MhkXpWJ-.js

TY3MhkXpWJ-.js

291 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

327 ms

Accessibility Review

datasheet4u.net accessibility score

57

Accessibility Issues

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

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

High

Form elements do not have associated labels

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

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

datasheet4u.net best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

datasheet4u.net SEO score

93

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Datasheet4u.net can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Datasheet4u.net 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

datasheet4u.net

Open Graph description is not detected on the main page of Datasheet4U. 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: