Tools & Wizards About Us
vaccinefinder.org screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

vaccinefinder.org

Find pharmacies near you

Page Load Speed

310 ms in total

First Response

10 ms

Resources Loaded

300 ms

Page Rendered

0 ms

vaccinefinder.org screenshot

About Website

Visit vaccinefinder.org now to see the best up-to-date Vaccine Find Er content for United States and also check out these interesting facts you probably never knew about vaccinefinder.org

Vaccines.gov helps you find nearby pharmacies in the United States.

Visit vaccinefinder.org

Key Findings

We analyzed Vaccinefinder.org page load time and found that the first response time was 10 ms and then it took 300 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

vaccinefinder.org performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value480 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

vaccinefinder.org

10 ms

www.vaccines.gov

120 ms

16 ms

33914b45df5bebdc.css

25 ms

6174b9f4e4983d9d.css

20 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Vaccinefinder.org, 96% (22 requests) were made to Vaccines.gov. The less responsive or slowest element that took the longest time to load (120 ms) relates to the external source Vaccines.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 221.4 kB (45%)

Content Size

495.0 kB

After Optimization

273.6 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Vaccinefinder.org main page is 495.0 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. 45% of websites need less resources to load. Javascripts take 453.1 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 27.3 kB

  • Original 31.7 kB
  • After minification 31.7 kB
  • After compression 4.4 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 27.3 kB or 86% of the original size.

JavaScript Optimization

-41%

Potential reduce by 186.5 kB

  • Original 453.1 kB
  • After minification 453.1 kB
  • After compression 266.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 186.5 kB or 41% of the original size.

CSS Optimization

-74%

Potential reduce by 7.5 kB

  • Original 10.2 kB
  • After minification 10.2 kB
  • After compression 2.6 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. Vaccinefinder.org needs all CSS files to be minified and compressed as it can save up to 7.5 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (85%)

Requests Now

20

After Optimization

3

  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vaccine Find Er. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

vaccinefinder.org

vaccinefinder.org

10 ms

www.vaccines.gov

www.vaccines.gov

120 ms

16 ms

33914b45df5bebdc.css

33914b45df5bebdc.css

25 ms

6174b9f4e4983d9d.css

6174b9f4e4983d9d.css

20 ms

fd9d1056-2e071c6f3422686b.js

fd9d1056-2e071c6f3422686b.js

36 ms

23-dd16db61f7a226f9.js

23-dd16db61f7a226f9.js

20 ms

main-app-c2a595b38514a2c7.js

main-app-c2a595b38514a2c7.js

16 ms

62e89220-504ef9b808bb022a.js

62e89220-504ef9b808bb022a.js

18 ms

c33a6526-998ac3634fc41d85.js

c33a6526-998ac3634fc41d85.js

22 ms

819-34b3ec38754281c3.js

819-34b3ec38754281c3.js

28 ms

90-bfacec9e8893959e.js

90-bfacec9e8893959e.js

30 ms

223-4721252cbbba0291.js

223-4721252cbbba0291.js

27 ms

349-809845e5029304fa.js

349-809845e5029304fa.js

30 ms

37-b2314276fba7cb10.js

37-b2314276fba7cb10.js

66 ms

879-ac67e9dc6ef6509a.js

879-ac67e9dc6ef6509a.js

40 ms

345-0852ada40b5bd35c.js

345-0852ada40b5bd35c.js

40 ms

layout-50be4fd24ea6edc8.js

layout-50be4fd24ea6edc8.js

41 ms

page-61c9cbfe6fa773ed.js

page-61c9cbfe6fa773ed.js

40 ms

layout-68c8eeb999e784f0.js

layout-68c8eeb999e784f0.js

65 ms

error-d2e21a363dd6f573.js

error-d2e21a363dd6f573.js

46 ms

polyfills-78c92fac7aa8fdd8.js

polyfills-78c92fac7aa8fdd8.js

44 ms

webpack-40141b3f95c99bd4.js

webpack-40141b3f95c99bd4.js

42 ms

Accessibility Review

vaccinefinder.org accessibility score

100

Accessibility Issues

Best Practices

vaccinefinder.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

vaccinefinder.org SEO score

90

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vaccinefinder.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 Vaccinefinder.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

vaccinefinder.org

Open Graph data is detected on the main page of Vaccine Find Er. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: