Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

blood.ca

Canadian Blood Services | Canada's Lifeline

Page Load Speed

9.6 sec in total

First Response

644 ms

Resources Loaded

8.5 sec

Page Rendered

504 ms

blood.ca screenshot

About Website

Welcome to blood.ca homepage info - get ready to check Blood best content for Canada right away, or after learning these important things about blood.ca

There are many ways to join Canada's Lifeline. Discover how you can make all the difference for someone in Canada today.

Visit blood.ca

Key Findings

We analyzed Blood.ca page load time and found that the first response time was 644 ms and then it took 9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

blood.ca performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value22.0 s

0/100

25%

SI (Speed Index)

Value12.8 s

2/100

10%

TBT (Total Blocking Time)

Value3,580 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.041

99/100

15%

TTI (Time to Interactive)

Value26.5 s

0/100

10%

Network Requests Diagram

www.blood.ca

644 ms

en

424 ms

ruxitagentjs_ICANVfghqrux_10287240325103108.js

318 ms

google_tag.script.js

361 ms

css_M38WPdzNTZz6YE0l8tpyVwUIXZCsgYiD2b-jzZORe98.css

365 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 38% of them (38 requests) were addressed to the original Blood.ca, 7% (7 requests) were made to Analytics.tiktok.com and 6% (6 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (843 ms) belongs to the original domain Blood.ca.

Page Optimization Overview & Recommendations

Page size can be reduced by 230.3 kB (19%)

Content Size

1.2 MB

After Optimization

992.2 kB

In fact, the total size of Blood.ca main page is 1.2 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 638.7 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 164.2 kB

  • Original 198.5 kB
  • After minification 167.0 kB
  • After compression 34.3 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 31.6 kB, which is 16% 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 164.2 kB or 83% of the original size.

Image Optimization

-6%

Potential reduce by 38.0 kB

  • Original 638.7 kB
  • After minification 600.7 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. Blood images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 27.9 kB

  • Original 275.4 kB
  • After minification 274.8 kB
  • After compression 247.5 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

-0%

Potential reduce by 142 B

  • Original 109.9 kB
  • After minification 109.9 kB
  • After compression 109.7 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. Blood.ca has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 53 (63%)

Requests Now

84

After Optimization

31

The browser has sent 84 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blood. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

blood.ca accessibility score

67

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

[role]s do not have all required [aria-*] attributes

High

ARIA IDs are not unique

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

Buttons do not have an accessible name

High

Form elements do not have associated labels

High

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

Heading elements are not in a sequentially-descending order

Best Practices

blood.ca 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

blood.ca SEO score

84

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

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 Blood.ca 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 Blood.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 Blood. 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: