Tools & Wizards About Us
blood4life.org screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

blood4life.org

Portal .::. Home

Page Load Speed

3.5 sec in total

First Response

161 ms

Resources Loaded

3.1 sec

Page Rendered

232 ms

blood4life.org screenshot

About Website

Click here to check amazing Blood 4 Life content for United States. Otherwise, check out these important facts you probably never knew about blood4life.org

Medical Web Portal

Visit blood4life.org

Key Findings

We analyzed Blood4life.org page load time and found that the first response time was 161 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

blood4life.org performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.2 s

0/100

25%

SI (Speed Index)

Value13.6 s

2/100

10%

TBT (Total Blocking Time)

Value2,560 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value24.6 s

0/100

10%

Network Requests Diagram

blood4life.org

161 ms

dwa

263 ms

mobiscroll.custom-3.2.6.min-cb53663f783369293252e49ec433a8e5.css

187 ms

jquery-ui-93bd0deaf07b2253873b726e124a8364.css

199 ms

jquery-ui-timepicker-addon-2965edf466d523a160509e7e37c4146e.css

200 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Blood4life.org, 88% (64 requests) were made to Donors.vitalant.org and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Donors.vitalant.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 384.1 kB (12%)

Content Size

3.2 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Blood4life.org main page is 3.2 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. 65% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 116.6 kB

  • Original 138.1 kB
  • After minification 134.0 kB
  • After compression 21.5 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. 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 116.6 kB or 84% of the original size.

Image Optimization

-2%

Potential reduce by 59.2 kB

  • Original 2.5 MB
  • After minification 2.5 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. Blood 4 Life images are well optimized though.

JavaScript Optimization

-38%

Potential reduce by 208.3 kB

  • Original 554.0 kB
  • After minification 553.8 kB
  • After compression 345.6 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 208.3 kB or 38% of the original size.

Requests Breakdown

Number of requests can be reduced by 54 (79%)

Requests Now

68

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blood 4 Life. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blood4life.org

blood4life.org

161 ms

dwa

dwa

263 ms

mobiscroll.custom-3.2.6.min-cb53663f783369293252e49ec433a8e5.css

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446 ms

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455 ms

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Accessibility Review

blood4life.org accessibility score

65

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

blood4life.org best practices score

50

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

blood4life.org SEO score

80

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

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

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 Blood4life.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 Blood4life.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

blood4life.org

Open Graph description is not detected on the main page of Blood 4 Life. 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: