Access optolinkcorp.com. Opto-Link Corporation Ltd

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value1.9 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

optolinkcorp.com

645 ms

background_v2.jpg

416 ms

logo_web3.jpg

620 ms

PDF-file.gif

420 ms

top.jpg

419 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that all of those requests were addressed to Optolinkcorp.com and no external sources were called. The less responsive or slowest element that took the longest time to load (645 ms) belongs to the original domain Optolinkcorp.com.

Content Size

139.0 kB

After Optimization

66.8 kB

In fact, the total size of Optolinkcorp.com main page is 139.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. HTML takes 80.4 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 72.1 kB

Original 80.4 kB
After minification 70.3 kB
After compression 8.3 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 10.1 kB, which is 13% 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 72.1 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 65 B

Original 58.6 kB
After minification 58.5 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. Opto Link Corp images are well optimized though.

Requests Now

After Optimization

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opto Link Corp. According to our analytics all requests are already optimized.

Accessibility Issues

These are opportunities to improve keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

High

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

High

Document uses plugins

Language and Encoding

Language Detected

EN
Language Claimed

N/A
Encoding

ISO-UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Optolinkcorp.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 Optolinkcorp.com main page’s claimed encoding is iso-utf-8. 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 Opto Link Corp. 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: