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viewlightusa.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

viewlightusa.com

Viewlight USA - Ophthalmic Products and Innovative Technology

Page Load Speed

12.7 sec in total

First Response

2 sec

Resources Loaded

9.1 sec

Page Rendered

1.6 sec

viewlightusa.com screenshot

About Website

Visit viewlightusa.com now to see the best up-to-date Viewlight USA content and also check out these interesting facts you probably never knew about viewlightusa.com

Viewlight USA is the leading provider of innovative ophthalmic instruments, advanced quality optics technology and best prices in the market.

Visit viewlightusa.com

Key Findings

We analyzed Viewlightusa.com page load time and found that the first response time was 2 sec and then it took 10.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

viewlightusa.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value16.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value51.1 s

0/100

25%

SI (Speed Index)

Value33.6 s

0/100

10%

TBT (Total Blocking Time)

Value1,590 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.038

100/100

15%

TTI (Time to Interactive)

Value52.4 s

0/100

10%

Network Requests Diagram

viewlightusa.com

2019 ms

js

53 ms

sgr.css

173 ms

style.min.css

344 ms

sow-social-media-buttons-atom-cd8024e296cf.css

174 ms

Our browser made a total of 235 requests to load all elements on the main page. We found that 88% of them (207 requests) were addressed to the original Viewlightusa.com, 4% (10 requests) were made to Fonts.gstatic.com and 3% (7 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Viewlightusa.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.2 MB (45%)

Content Size

7.2 MB

After Optimization

4.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Viewlightusa.com main page is 7.2 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. Only a small number of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 339.1 kB

  • Original 400.5 kB
  • After minification 388.7 kB
  • After compression 61.4 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 339.1 kB or 85% of the original size.

Image Optimization

-9%

Potential reduce by 257.5 kB

  • Original 3.0 MB
  • After minification 2.7 MB

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. Viewlight USA images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 1.6 MB

  • Original 2.6 MB
  • After minification 2.6 MB
  • After compression 950.8 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 1.6 MB or 63% of the original size.

CSS Optimization

-81%

Potential reduce by 975.0 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 225.1 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. Viewlightusa.com needs all CSS files to be minified and compressed as it can save up to 975.0 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 163 (75%)

Requests Now

218

After Optimization

55

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 218 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Viewlight USA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 80 to 1 for JavaScripts and from 85 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

viewlightusa.com

viewlightusa.com

2019 ms

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53 ms

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173 ms

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Accessibility Review

viewlightusa.com accessibility score

88

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

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

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

viewlightusa.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

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

viewlightusa.com SEO score

99

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

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 Viewlightusa.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 Viewlightusa.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

viewlightusa.com

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