Access nvisioncenters.com. LASIK Eye Surgery - Cataract Surgery

Report Summary

About Website

Welcome to nvisioncenters.com homepage info - get ready to check Nvisioncenters best content for United States right away, or after learning these important things about nvisioncenters.com

NVISION eye clinics provide top-tier LASIK Eye Surgery, Cataract Surgery & other Opthalmology services at more than 70 locations.

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name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value3,960 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.051

99/100

15%

TTI (Time to Interactive)

Value17.3 s

4/100

10%

www.nvisioncenters.com

671 ms

style.min.css

13 ms

index.prod.css

14 ms

index.prod.js

53 ms

smush-lazy-load.min.js

55 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 18% of them (8 requests) were addressed to the original Nvisioncenters.com, 16% (7 requests) were made to D.adroll.com and 9% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (671 ms) belongs to the original domain Nvisioncenters.com.

Content Size

657.5 kB

After Optimization

376.1 kB

In fact, the total size of Nvisioncenters.com main page is 657.5 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. 55% of websites need less resources to load. HTML takes 294.5 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 227.8 kB

Original 294.5 kB
After minification 276.4 kB
After compression 66.7 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 227.8 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 109.3 kB
After minification 109.3 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. Nvisioncenters images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 13.5 kB

Original 198.8 kB
After minification 198.8 kB
After compression 185.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-73%

Potential reduce by 40.1 kB

Original 55.0 kB
After minification 19.3 kB
After compression 15.0 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. Nvisioncenters.com needs all CSS files to be minified and compressed as it can save up to 40.1 kB or 73% of the original size.

Requests Now

After Optimization

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nvisioncenters. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

ARIA IDs are not unique

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

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 Nvisioncenters.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 Nvisioncenters.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

nvisioncenters.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

LASIK Eye Surgery - Cataract Surgery - Eye Clinics Near Me

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)