Tools & Wizards About Us

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

columbiavision.com

Optometrist in Seattle | Columbia Vision Center Columbia Vision Center - Optometry in Seattle, WA US

Page Load Speed

3.2 sec in total

First Response

51 ms

Resources Loaded

1.2 sec

Page Rendered

2 sec

About Website

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

Columbia Vision Center in downtown Seattle, WA provides eye exams, glasses, and contact lenses. Contact Us today to schedule an appointment or come stop by!

Visit columbiavision.com

Key Findings

We analyzed Columbiavision.com page load time and found that the first response time was 51 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

columbiavision.com performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

80/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value3.9 s

83/100

10%

TBT (Total Blocking Time)

Value350 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0.094

91/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

Network Requests Diagram

columbiavision.com

51 ms

columbiavision.com

404 ms

08e1f3953c033b57075921f08948cd31.opt-min.cr.css

29 ms

css2

27 ms

logo.png.webp

123 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 15% of them (10 requests) were addressed to the original Columbiavision.com, 23% (15 requests) were made to Cdcssl.ibsrv.net and 20% (13 requests) were made to Lh3.googleusercontent.com. The less responsive or slowest element that took the longest time to load (691 ms) relates to the external source Lh3.googleusercontent.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 414.2 kB (27%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Columbiavision.com main page is 1.6 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. 70% of websites need less resources to load. Images take 721.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 244.0 kB

  • Original 290.1 kB
  • After minification 289.6 kB
  • After compression 46.1 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 244.0 kB or 84% of the original size.

Image Optimization

-5%

Potential reduce by 36.2 kB

  • Original 721.7 kB
  • After minification 685.5 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. Columbia Vision images are well optimized though.

JavaScript Optimization

-27%

Potential reduce by 133.8 kB

  • Original 489.1 kB
  • After minification 489.1 kB
  • After compression 355.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 133.8 kB or 27% of the original size.

CSS Optimization

-0%

Potential reduce by 160 B

  • Original 52.8 kB
  • After minification 52.8 kB
  • After compression 52.6 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. Columbiavision.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (27%)

Requests Now

44

After Optimization

32

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Columbia Vision. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

columbiavision.com accessibility score

89

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-hidden="true"] elements contain focusable descendents

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

Links do not have a discernible name

Best Practices

columbiavision.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

columbiavision.com SEO score

77

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Columbiavision.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 Columbiavision.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

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