Tools & Wizards About Us
enpdv.com screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

enpdv.com

Optical Table, Track Stand Microscope Stand, Microscope Objective, Optical Bench, Optical Lens Manufacturers - Wholesale - Beijing PDV

Page Load Speed

3 sec in total

First Response

394 ms

Resources Loaded

2.4 sec

Page Rendered

207 ms

enpdv.com screenshot

About Website

Click here to check amazing En PDV content. Otherwise, check out these important facts you probably never knew about enpdv.com

Wholesale high quality and durable optical table, track stand microscope stand, microscope objective, optical bench, optical lens at big discount with PDV - one of leading manufacturers. We also suppo...

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Key Findings

We analyzed Enpdv.com page load time and found that the first response time was 394 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

enpdv.com performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value370 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.157

74/100

15%

TTI (Time to Interactive)

Value8.1 s

41/100

10%

Network Requests Diagram

enpdv.com

394 ms

www.enpdv.com

528 ms

style.css

120 ms

Index_2.css

707 ms

jquery.js

65 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 33% of them (19 requests) were addressed to the original Enpdv.com, 26% (15 requests) were made to Img01.v15cdn.com and 16% (9 requests) were made to Css02.v15cdn.com. The less responsive or slowest element that took the longest time to load (800 ms) belongs to the original domain Enpdv.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 135.1 kB (17%)

Content Size

805.7 kB

After Optimization

670.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Enpdv.com main page is 805.7 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. 30% of websites need less resources to load. Images take 602.2 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 19.9 kB

  • Original 27.3 kB
  • After minification 27.1 kB
  • After compression 7.4 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 19.9 kB or 73% of the original size.

Image Optimization

-4%

Potential reduce by 27.0 kB

  • Original 602.2 kB
  • After minification 575.2 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. En PDV images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 88.0 kB

  • Original 169.9 kB
  • After minification 169.9 kB
  • After compression 81.9 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 88.0 kB or 52% of the original size.

CSS Optimization

-3%

Potential reduce by 220 B

  • Original 6.4 kB
  • After minification 6.4 kB
  • After compression 6.2 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. Enpdv.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 28 (52%)

Requests Now

54

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of En PDV. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

enpdv.com

enpdv.com

394 ms

www.enpdv.com

www.enpdv.com

528 ms

style.css

style.css

120 ms

Index_2.css

Index_2.css

707 ms

jquery.js

jquery.js

65 ms

sitecommon.js

sitecommon.js

64 ms

other.css

other.css

75 ms

Site_Common.js

Site_Common.js

62 ms

flash.js

flash.js

63 ms

count.js

count.js

65 ms

script.js

script.js

120 ms

float14306.js

float14306.js

148 ms

conversion.js

conversion.js

54 ms

gtm.js

gtm.js

98 ms

gtm.js

gtm.js

142 ms

amore.webp

amore.webp

273 ms

logo229894.png

logo229894.png

159 ms

index_08.gif

index_08.gif

51 ms

index_09.png

index_09.png

52 ms

index_10.png

index_10.png

62 ms

index_11.png

index_11.png

60 ms

index_12.png

index_12.png

76 ms

ba1fecb9e9-be2a-4e63-bffe-dd9189da8086.jpg

ba1fecb9e9-be2a-4e63-bffe-dd9189da8086.jpg

491 ms

baafdea0da-67cd-4c53-b403-d4a7509a2c4a.jpg

baafdea0da-67cd-4c53-b403-d4a7509a2c4a.jpg

536 ms

ba0aed52dd-ebd4-4196-a38d-e97f23d60dca.jpg

ba0aed52dd-ebd4-4196-a38d-e97f23d60dca.jpg

800 ms

high-precision-motorized-rotary-stage-hollow01512679611.jpg

high-precision-motorized-rotary-stage-hollow01512679611.jpg

335 ms

p201705311041123794226.jpg

p201705311041123794226.jpg

323 ms

pt-gd402-electric-lifting-platform-motorized24215700731.jpg

pt-gd402-electric-lifting-platform-motorized24215700731.jpg

421 ms

pt-sd1711m-precisa-manual-do-elevadorfa9eb.jpg

pt-sd1711m-precisa-manual-do-elevadorfa9eb.jpg

503 ms

p201705310922463767258.jpg

p201705310922463767258.jpg

449 ms

201707101332085580421.jpg

201707101332085580421.jpg

494 ms

201707101333036853515.png

201707101333036853515.png

743 ms

home-news.jpg

home-news.jpg

585 ms

erwei229894.jpg

erwei229894.jpg

634 ms

en.webp

en.webp

261 ms

mt.webp

mt.webp

267 ms

ko.webp

ko.webp

265 ms

nl.webp

nl.webp

268 ms

fr.webp

fr.webp

275 ms

de.webp

de.webp

274 ms

otq.webp

otq.webp

275 ms

gr.webp

gr.webp

280 ms

se.webp

se.webp

276 ms

vn.webp

vn.webp

281 ms

bg.webp

bg.webp

281 ms

il.webp

il.webp

283 ms

2wm.webp

2wm.webp

291 ms

s

s

635 ms

analytics.js

analytics.js

42 ms

30 ms

ad_ctr.png

ad_ctr.png

37 ms

dot.png

dot.png

35 ms

share_l.png

share_l.png

598 ms

wmkc-ico23.webp

wmkc-ico23.webp

248 ms

40 ms

collect

collect

22 ms

js

js

62 ms

38 ms

Accessibility Review

enpdv.com accessibility score

54

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements 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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

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

Best Practices

enpdv.com 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

enpdv.com SEO score

76

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Enpdv.com 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 Enpdv.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

enpdv.com

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