Tools & Wizards About Us

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

b.dl.redcrossblood.org

Download The Red Cross Blood Donor App | Red Cross Blood Services

Page Load Speed

1.7 sec in total

First Response

358 ms

Resources Loaded

830 ms

Page Rendered

537 ms

About Website

Click here to check amazing B Dl Red Cross Blood content for United States. Otherwise, check out these important facts you probably never knew about b.dl.redcrossblood.org

Download the Red Cross Blood Donor App. Our mobile app puts the power to save lives in the palm of your hand.

Visit b.dl.redcrossblood.org

Key Findings

We analyzed B.dl.redcrossblood.org page load time and found that the first response time was 358 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

b.dl.redcrossblood.org performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value1,230 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.0 s

4/100

10%

Network Requests Diagram

b.dl.redcrossblood.org

358 ms

blood-donor-app.html

129 ms

css

68 ms

base.min.a910a965186ca332b9ba260fd66b6c59.css

17 ms

components.min.3465bd8b368831ef6b8e5452ebaf5204.css

56 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original B.dl.redcrossblood.org, 66% (27 requests) were made to Redcrossblood.org and 22% (9 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (358 ms) belongs to the original domain B.dl.redcrossblood.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.6 MB (80%)

Content Size

2.0 MB

After Optimization

401.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of B.dl.redcrossblood.org main page is 2.0 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. 60% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 55.9 kB

  • Original 66.8 kB
  • After minification 59.0 kB
  • After compression 10.9 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 7.8 kB, which is 12% 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 55.9 kB or 84% of the original size.

Image Optimization

-85%

Potential reduce by 1.1 MB

  • Original 1.4 MB
  • After minification 204.1 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. Obviously, B Dl Red Cross Blood needs image optimization as it can save up to 1.1 MB or 85% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-66%

Potential reduce by 366.6 kB

  • Original 553.1 kB
  • After minification 553.1 kB
  • After compression 186.4 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 366.6 kB or 66% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (44%)

Requests Now

27

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of B Dl Red Cross 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 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

b.dl.redcrossblood.org accessibility score

96

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

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

b.dl.redcrossblood.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Requests the geolocation permission on page load

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

SEO Factors

b.dl.redcrossblood.org SEO score

89

Search Engine Optimization Advices

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 B.dl.redcrossblood.org 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 B.dl.redcrossblood.org 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 B Dl Red Cross Blood. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: