Tools & Wizards About Us

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 79% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

myvfcvaccines.org

MyVFCVaccines – California Vaccines for Children (VFC)

Page Load Speed

2.1 sec in total

First Response

164 ms

Resources Loaded

1.8 sec

Page Rendered

87 ms

About Website

Click here to check amazing MyVFC Vaccines content. Otherwise, check out these important facts you probably never knew about myvfcvaccines.org

California Vaccines for Children, VFC Online Immunization Training. Vaccine storage, vaccine handling for California, health care providers.

Visit myvfcvaccines.org

Key Findings

We analyzed Myvfcvaccines.org page load time and found that the first response time was 164 ms and then it took 1.9 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

myvfcvaccines.org performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value4.4 s

73/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.6 s

69/100

10%

Network Requests Diagram

myvfcvaccines.org

164 ms

402 ms

style.css

74 ms

jquery-latest.pack.js

267 ms

ddaccordion.js

187 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 33% of them (10 requests) were addressed to the original Myvfcvaccines.org, 40% (12 requests) were made to Eziz.org and 17% (5 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (402 ms) relates to the external source Eziz.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 288.5 kB (45%)

Content Size

640.7 kB

After Optimization

352.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Myvfcvaccines.org main page is 640.7 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. 30% of websites need less resources to load. Javascripts take 531.6 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 13.4 kB

  • Original 18.5 kB
  • After minification 15.6 kB
  • After compression 5.1 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 2.9 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 13.4 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 112 B

  • Original 66.7 kB
  • After minification 66.6 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. MyVFC Vaccines images are well optimized though.

JavaScript Optimization

-49%

Potential reduce by 261.2 kB

  • Original 531.6 kB
  • After minification 526.6 kB
  • After compression 270.4 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 261.2 kB or 49% of the original size.

CSS Optimization

-57%

Potential reduce by 13.7 kB

  • Original 23.9 kB
  • After minification 20.7 kB
  • After compression 10.2 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. Myvfcvaccines.org needs all CSS files to be minified and compressed as it can save up to 13.7 kB or 57% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (54%)

Requests Now

28

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of MyVFC Vaccines. 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 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

myvfcvaccines.org accessibility score

92

Accessibility Issues

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

Links do not have a discernible name

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

Best Practices

myvfcvaccines.org 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

SEO Factors

myvfcvaccines.org SEO score

75

Search Engine Optimization Advices

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 Myvfcvaccines.org 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 Myvfcvaccines.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 description is not detected on the main page of MyVFC Vaccines. 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: