Tools & Wizards About Us
vaccinefinder.org screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

vaccinefinder.org

Vaccines.gov - Find COVID‑19 vaccine locations near you

Page Load Speed

1.7 sec in total

First Response

70 ms

Resources Loaded

1.5 sec

Page Rendered

126 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 clinics, pharmacies, and other locations that offer COVID‑19 vaccines in the United States.

Visit vaccinefinder.org

Key Findings

We analyzed Vaccinefinder.org page load time and found that the first response time was 70 ms and then it took 1.6 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

vaccinefinder.org performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value11,270 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value16.7 s

5/100

10%

Network Requests Diagram

vaccinefinder.org

70 ms

css

43 ms

jsapi

54 ms

bootstrap.min.css

25 ms

bootstrap-responsive.min.css

20 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 29% of them (21 requests) were addressed to the original Vaccinefinder.org, 35% (25 requests) were made to Maps.googleapis.com and 14% (10 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (118 ms) relates to the external source Maps.googleapis.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 665.6 kB (60%)

Content Size

1.1 MB

After Optimization

451.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vaccinefinder.org main page is 1.1 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. 55% of websites need less resources to load. Javascripts take 633.2 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 84.8 kB

  • Original 101.7 kB
  • After minification 95.2 kB
  • After compression 16.8 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 84.8 kB or 83% of the original size.

Image Optimization

-10%

Potential reduce by 20.6 kB

  • Original 207.3 kB
  • After minification 186.8 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. Vaccine Find Er images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 416.0 kB

  • Original 633.2 kB
  • After minification 621.2 kB
  • After compression 217.2 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 416.0 kB or 66% of the original size.

CSS Optimization

-82%

Potential reduce by 144.2 kB

  • Original 174.9 kB
  • After minification 169.7 kB
  • After compression 30.7 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 144.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (50%)

Requests Now

60

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 60 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 from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vaccinefinder.org

vaccinefinder.org

70 ms

css

css

43 ms

jsapi

jsapi

54 ms

bootstrap.min.css

bootstrap.min.css

25 ms

bootstrap-responsive.min.css

bootstrap-responsive.min.css

20 ms

styles.css

styles.css

24 ms

font-awesome.css

font-awesome.css

27 ms

jquery.min.js

jquery.min.js

39 ms

jquery-migrate-1.2.1.js

jquery-migrate-1.2.1.js

50 ms

bootstrap.min.js

bootstrap.min.js

22 ms

locator.js

locator.js

21 ms

mapstyles.js

mapstyles.js

21 ms

infobox.js

infobox.js

35 ms

js

js

75 ms

ga.js

ga.js

6 ms

__utm.gif

__utm.gif

12 ms

hmlogo.png

hmlogo.png

62 ms

common.js

common.js

30 ms

map.js

map.js

45 ms

chbx.png

chbx.png

8 ms

fny.png

fny.png

9 ms

hmicon.png

hmicon.png

9 ms

chblogo.gif

chblogo.gif

10 ms

harvardlogo.gif

harvardlogo.gif

10 ms

vgov.png

vgov.png

10 ms

flugov.png

flugov.png

10 ms

hhs.png

hhs.png

11 ms

ubervf.png

ubervf.png

10 ms

uber.jpg

uber.jpg

12 ms

fnywidget.png

fnywidget.png

11 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

19 ms

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

19 ms

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

20 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

10 ms

xjAJXh38I15wypJXxuGMBp0EAVxt0G0biEntp43Qt6E.ttf

xjAJXh38I15wypJXxuGMBp0EAVxt0G0biEntp43Qt6E.ttf

18 ms

PRmiXeptR36kaC0GEAetxi8cqLH4MEiSE0ROcU-qHOA.ttf

PRmiXeptR36kaC0GEAetxi8cqLH4MEiSE0ROcU-qHOA.ttf

19 ms

PRmiXeptR36kaC0GEAetxp_TkvowlIOtbR7ePgFOpF4.ttf

PRmiXeptR36kaC0GEAetxp_TkvowlIOtbR7ePgFOpF4.ttf

19 ms

util.js

util.js

28 ms

onion.js

onion.js

19 ms

openhand_8_8.cur

openhand_8_8.cur

83 ms

ViewportInfoService.GetViewportInfo

ViewportInfoService.GetViewportInfo

118 ms

stats.js

stats.js

31 ms

controls.js

controls.js

33 ms

css

css

86 ms

transparent.png

transparent.png

47 ms

google4.png

google4.png

22 ms

mapcnt6.png

mapcnt6.png

20 ms

sv5.png

sv5.png

22 ms

tmapctrl.png

tmapctrl.png

40 ms

tmapctrl4.png

tmapctrl4.png

39 ms

google_white5.png

google_white5.png

39 ms

vt

vt

18 ms

vt

vt

19 ms

vt

vt

16 ms

vt

vt

29 ms

vt

vt

29 ms

vt

vt

40 ms

vt

vt

41 ms

vt

vt

40 ms

vt

vt

50 ms

vt

vt

42 ms

vt

vt

51 ms

vt

vt

49 ms

vt

vt

54 ms

vt

vt

53 ms

vt

vt

51 ms

vt

vt

56 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

19 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

25 ms

Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf

Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf

37 ms

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

38 ms

AuthenticationService.Authenticate

AuthenticationService.Authenticate

33 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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

vaccinefinder.org SEO score

100

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

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 . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

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: