Tools & Wizards About Us

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

arcblood.redcross.org

Donate Blood | Find a Local Blood Drive | American Red Cross

Page Load Speed

2.3 sec in total

First Response

184 ms

Resources Loaded

1.4 sec

Page Rendered

686 ms

About Website

Visit arcblood.redcross.org now to see the best up-to-date Arc Blood Red Cross content for United States and also check out these interesting facts you probably never knew about arcblood.redcross.org

Giving blood is a simple thing to do, but it can make a big difference in the lives of others. Make a blood donation appointment with the American Red Cross today.

Visit arcblood.redcross.org

Key Findings

We analyzed Arcblood.redcross.org page load time and found that the first response time was 184 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

arcblood.redcross.org performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value3,530 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value19.4 s

2/100

10%

Network Requests Diagram

give-blood

184 ms

give-blood.html

339 ms

css

57 ms

base.min.38c753fae68ea793cf4581c563241e7d.css

44 ms

components.min.a5a85e73bbb5b25b40c4e90ded0cfbef.css

24 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Arcblood.redcross.org, 23% (16 requests) were made to Fonts.gstatic.com and 4% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (375 ms) relates to the external source Support.redcrossblood.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 782.1 kB (28%)

Content Size

2.8 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Arcblood.redcross.org main page is 2.8 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. 80% 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 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 74.2 kB

  • Original 87.8 kB
  • After minification 75.6 kB
  • After compression 13.5 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 12.2 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 74.2 kB or 85% of the original size.

Image Optimization

-11%

Potential reduce by 197.1 kB

  • Original 1.8 MB
  • After minification 1.6 MB

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, Arc Blood Red Cross needs image optimization as it can save up to 197.1 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-56%

Potential reduce by 510.8 kB

  • Original 914.8 kB
  • After minification 914.8 kB
  • After compression 404.0 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 510.8 kB or 56% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (39%)

Requests Now

44

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Arc Blood Red Cross. 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 from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

arcblood.redcross.org accessibility score

88

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

arcblood.redcross.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

High

Missing source maps for large first-party JavaScript

SEO Factors

arcblood.redcross.org SEO score

75

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 Arcblood.redcross.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 Arcblood.redcross.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 Arc Blood Red Cross. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: