Tools & Wizards About Us

Report Summary

  • 75

    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

  • 67

    SEO

    Google-friendlier than
    26% of websites

aotk.com

AOTK is your strategic partner. DPSS Laser, Crystals, Optics.

Page Load Speed

7.5 sec in total

First Response

723 ms

Resources Loaded

6.7 sec

Page Rendered

72 ms

About Website

Welcome to aotk.com homepage info - get ready to check AOTK best content right away, or after learning these important things about aotk.com

AOTK Laser, DPSS Laser,Single Longitudinal Mode Lasers, Green SLM Laser, 532nm Lasers,SML Lasers, Green Laser, Green DPSS Laser, Lasers, Laser, Green Lasers,BBO,晶体，LBO晶体，激光器，单纵膜激光器，F-P干涉仪，光机电产品、光电实验、光...

Visit aotk.com

Key Findings

We analyzed Aotk.com page load time and found that the first response time was 723 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

aotk.com performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

aotk.com

723 ms

www.aotk.com

2513 ms

all_pic_style.css

523 ms

communal_style.css

548 ms

bg.jpg

220 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 54% of them (32 requests) were addressed to the original Aotk.com, 46% (27 requests) were made to Www-x-aotk-x-com.img.addlink.cn. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Aotk.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 48.5 kB (10%)

Content Size

491.8 kB

After Optimization

443.2 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Aotk.com main page is 491.8 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. 20% of websites need less resources to load. Images take 452.7 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 27.0 kB

  • Original 33.4 kB
  • After minification 32.7 kB
  • After compression 6.4 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 27.0 kB or 81% of the original size.

Image Optimization

-4%

Potential reduce by 19.7 kB

  • Original 452.7 kB
  • After minification 433.0 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. AOTK images are well optimized though.

CSS Optimization

-32%

Potential reduce by 1.8 kB

  • Original 5.7 kB
  • After minification 5.7 kB
  • After compression 3.8 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. Aotk.com needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 32% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (24%)

Requests Now

29

After Optimization

22

  • Images
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of AOTK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

aotk.com accessibility score

39

Accessibility Issues

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

<input type="image"> elements do not have [alt] text

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

aotk.com best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

aotk.com SEO score

67

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aotk.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 Aotk.com main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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