Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

Page Load Speed

784 ms in total

First Response

38 ms

Resources Loaded

496 ms

Page Rendered

250 ms

vaccine-ontario.ca screenshot

About Website

Click here to check amazing Vaccine Ontario content for Canada. Otherwise, check out these important facts you probably never knew about vaccine-ontario.ca

Visit vaccine-ontario.ca

Key Findings

We analyzed Vaccine-ontario.ca page load time and found that the first response time was 38 ms and then it took 746 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

vaccine-ontario.ca performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value1.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value1.8 s

100/100

10%

Network Requests Diagram

vaccine-ontario.ca

38 ms

bootstrap.min.css

5 ms

bootstrap-grid.min.css

134 ms

bootstrap-reboot.min.css

19 ms

style.css

59 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Vaccine-ontario.ca and no external sources were called. The less responsive or slowest element that took the longest time to load (275 ms) belongs to the original domain Vaccine-ontario.ca.

Page Optimization Overview & Recommendations

Page size can be reduced by 15.4 kB (4%)

Content Size

363.3 kB

After Optimization

347.9 kB

In fact, the total size of Vaccine-ontario.ca main page is 363.3 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. 25% of websites need less resources to load. Images take 351.5 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 8.5 kB

  • Original 11.8 kB
  • After minification 10.1 kB
  • After compression 3.3 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 1.7 kB, which is 14% 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 8.5 kB or 72% of the original size.

Image Optimization

-2%

Potential reduce by 6.9 kB

  • Original 351.5 kB
  • After minification 344.6 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. Vaccine Ontario images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 10 (59%)

Requests Now

17

After Optimization

7

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vaccine Ontario. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

vaccine-ontario.ca accessibility score

60

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.

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

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

vaccine-ontario.ca best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

vaccine-ontario.ca SEO score

83

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

Image elements do not have [alt] attributes

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vaccine-ontario.ca 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 Vaccine-ontario.ca 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 description is not detected on the main page of Vaccine Ontario. 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: