Tools & Wizards About Us
alkor.net screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    73% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

alkor.net

Alkor Technologies - your Crystal optics supplier

Page Load Speed

5.2 sec in total

First Response

612 ms

Resources Loaded

4.3 sec

Page Rendered

257 ms

alkor.net screenshot

About Website

Visit alkor.net now to see the best up-to-date Alkor content for Russia and also check out these interesting facts you probably never knew about alkor.net

Crystal optical components according to customer's specifications. Optical windows, lenses, beamsplitters for lasers, FTIR spectroscopy, thermography. Crystals: BaF2, CaF2, Ge, KBr, KCl, LiF, MgF2, Na...

Visit alkor.net

Key Findings

We analyzed Alkor.net page load time and found that the first response time was 612 ms and then it took 4.5 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

alkor.net performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

81/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value3.5 s

89/100

10%

TBT (Total Blocking Time)

Value1,060 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.119

84/100

15%

TTI (Time to Interactive)

Value8.7 s

36/100

10%

Network Requests Diagram

alkor.net

612 ms

main.css

952 ms

in.js

220 ms

top-alkor.jpg

178 ms

top-contacts.jpg

310 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 39% of them (11 requests) were addressed to the original Alkor.net, 29% (8 requests) were made to Apis.google.com and 7% (2 requests) were made to Platform.linkedin.com. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source Platform.linkedin.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 29.7 kB (21%)

Content Size

143.1 kB

After Optimization

113.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alkor.net main page is 143.1 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 85.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 18.6 kB

  • Original 23.6 kB
  • After minification 22.7 kB
  • After compression 4.9 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 18.6 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 85.9 kB
  • After minification 85.9 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. Alkor images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 6.0 kB

  • Original 27.6 kB
  • After minification 27.6 kB
  • After compression 21.5 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 6.0 kB or 22% of the original size.

CSS Optimization

-84%

Potential reduce by 5.0 kB

  • Original 6.0 kB
  • After minification 5.2 kB
  • After compression 990 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. Alkor.net needs all CSS files to be minified and compressed as it can save up to 5.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (67%)

Requests Now

24

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alkor. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

alkor.net

alkor.net

612 ms

main.css

main.css

952 ms

in.js

in.js

220 ms

top-alkor.jpg

top-alkor.jpg

178 ms

top-contacts.jpg

top-contacts.jpg

310 ms

logo-1200.jpg

logo-1200.jpg

652 ms

menu_left_top.jpg

menu_left_top.jpg

492 ms

menu_right_top.jpg

menu_right_top.jpg

655 ms

menu_left_center.jpg

menu_left_center.jpg

793 ms

menu_right_center.jpg

menu_right_center.jpg

794 ms

menu_left_bottom.jpg

menu_left_bottom.jpg

925 ms

menu_right_bottom.jpg

menu_right_bottom.jpg

930 ms

secureAnonymousFramework

secureAnonymousFramework

2656 ms

plusone.js

plusone.js

352 ms

watch.js

watch.js

1 ms

ga.js

ga.js

287 ms

__utm.gif

__utm.gif

132 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

277 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

361 ms

fastbutton

fastbutton

340 ms

collect

collect

349 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

244 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

339 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

564 ms

postmessageRelay

postmessageRelay

433 ms

1077434459-postmessagerelay.js

1077434459-postmessagerelay.js

96 ms

rpc:shindig_random.js

rpc:shindig_random.js

33 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

17 ms

Accessibility Review

alkor.net accessibility score

87

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.

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

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

alkor.net 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

alkor.net 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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alkor.net 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 Alkor.net main page’s claimed encoding is iso-8859-1. 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

alkor.net

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