Tools & Wizards About Us
q-crystal.com screenshot

Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 39

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

q-crystal.com

SJK - Shenzhen Crystal Technology: Crystal & Oscillator Worldwide Supplier

Page Load Speed

8.8 sec in total

First Response

403 ms

Resources Loaded

8.2 sec

Page Rendered

192 ms

q-crystal.com screenshot

About Website

Visit q-crystal.com now to see the best up-to-date Q Crystal content and also check out these interesting facts you probably never knew about q-crystal.com

SJK is a professional manufacturer of Crystal Resonators (XTAL), Oscillators (XO) and other frequency control components since 1989. Contac us for any inquiry or samples

Visit q-crystal.com

Key Findings

We analyzed Q-crystal.com page load time and found that the first response time was 403 ms and then it took 8.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

q-crystal.com performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

81/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

38/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.1 s

99/100

10%

Network Requests Diagram

q-crystal.com

403 ms

q-crystal.com

483 ms

style.css

96 ms

jquery-1.9.1.min.js

647 ms

script.js

230 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 98% of them (54 requests) were addressed to the original Q-crystal.com, 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (4.4 sec) belongs to the original domain Q-crystal.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 483.3 kB (30%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Q-crystal.com main page is 1.6 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. 35% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 27.5 kB

  • Original 33.8 kB
  • After minification 26.5 kB
  • After compression 6.3 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. This page needs HTML code to be minified as it can gain 7.3 kB, which is 22% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 27.5 kB or 81% of the original size.

Image Optimization

-25%

Potential reduce by 321.2 kB

  • Original 1.3 MB
  • After minification 986.9 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, Q Crystal needs image optimization as it can save up to 321.2 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-44%

Potential reduce by 111.2 kB

  • Original 250.7 kB
  • After minification 250.2 kB
  • After compression 139.6 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 111.2 kB or 44% of the original size.

CSS Optimization

-84%

Potential reduce by 23.4 kB

  • Original 27.7 kB
  • After minification 18.6 kB
  • After compression 4.3 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. Q-crystal.com needs all CSS files to be minified and compressed as it can save up to 23.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (15%)

Requests Now

53

After Optimization

45

  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Q Crystal. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

q-crystal.com

q-crystal.com

403 ms

q-crystal.com

q-crystal.com

483 ms

style.css

style.css

96 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

647 ms

script.js

script.js

230 ms

jquery.1.4.2-min.js

jquery.1.4.2-min.js

965 ms

scrolltopcontrol.js

scrolltopcontrol.js

256 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

699 ms

zzsc.js

zzsc.js

281 ms

zzsc.css

zzsc.css

315 ms

js

js

63 ms

jquery.js

jquery.js

955 ms

superslide.2.1.js

superslide.2.1.js

656 ms

logo.png

logo.png

498 ms

cn.jpg

cn.jpg

413 ms

sb.jpg

sb.jpg

532 ms

tel.jpg

tel.jpg

268 ms

navbg.png

navbg.png

487 ms

bmenu.png

bmenu.png

564 ms

6267b11501aee.png

6267b11501aee.png

624 ms

5c131c1051e18.jpg

5c131c1051e18.jpg

513 ms

5c131f2a82931.jpg

5c131f2a82931.jpg

583 ms

5c13202f1d3b6.jpg

5c13202f1d3b6.jpg

611 ms

5c132051d01d8.jpg

5c132051d01d8.jpg

634 ms

5c1320d16a49e.jpg

5c1320d16a49e.jpg

835 ms

5c13212f2f479.jpg

5c13212f2f479.jpg

649 ms

5c13215ed20e9.jpg

5c13215ed20e9.jpg

667 ms

6267adced1ed8.jpg

6267adced1ed8.jpg

1309 ms

5c131c10531e9.jpg

5c131c10531e9.jpg

806 ms

5c131c1053bac.jpg

5c131c1053bac.jpg

831 ms

5c131c105450c.jpg

5c131c105450c.jpg

835 ms

64f80becd335f.jpg

64f80becd335f.jpg

1330 ms

614159dd0995b.png

614159dd0995b.png

1004 ms

5c413f750dc8d.png

5c413f750dc8d.png

1458 ms

5c402bf98aff6.jpg

5c402bf98aff6.jpg

915 ms

5c402f8b177fb.jpg

5c402f8b177fb.jpg

938 ms

5c413bf41f135.png

5c413bf41f135.png

2228 ms

5c40379deb291.png

5c40379deb291.png

1222 ms

5c413ece1664f.png

5c413ece1664f.png

2167 ms

6267a3db26c82.jpg

6267a3db26c82.jpg

4423 ms

tel.png

tel.png

1397 ms

eml.png

eml.png

1504 ms

b01.png

b01.png

1601 ms

facebook3.png

facebook3.png

1542 ms

b03.png

b03.png

2218 ms

b04.png

b04.png

1885 ms

youtube.png

youtube.png

1692 ms

skype.png

skype.png

1782 ms

slider-arrow.png

slider-arrow.png

1835 ms

66f26a7eef638.jpg

66f26a7eef638.jpg

2578 ms

xt.jpg

xt.jpg

2046 ms

backgrounds.32.png

backgrounds.32.png

1548 ms

topback.png

topback.png

688 ms

6686423848b9a.jpg

6686423848b9a.jpg

2902 ms

62d7bed836251.jpg

62d7bed836251.jpg

1262 ms

Accessibility Review

q-crystal.com accessibility score

39

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

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

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

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

Links do not have a discernible name

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

q-crystal.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

SEO Factors

q-crystal.com SEO score

92

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

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Q-crystal.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Q-crystal.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

q-crystal.com

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