Tools & Wizards About Us

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

4vfr.com

Free FAA Private Pilot Practice Exam, Aviation Glossary, and Flight Training Articles — 4VFR.com

Page Load Speed

1.6 sec in total

First Response

251 ms

Resources Loaded

1.2 sec

Page Rendered

95 ms

About Website

Click here to check amazing 4VFR content. Otherwise, check out these important facts you probably never knew about 4vfr.com

Free online study guide for student pilots since 2001. Take a practice FAA Private Pilot exam, search 2,200+ aviation terms, browse 400+ training articles, and listen to live ATC.

Visit 4vfr.com

Key Findings

We analyzed 4vfr.com page load time and found that the first response time was 251 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

4vfr.com performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value2.1 s

99/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0.089

92/100

15%

TTI (Time to Interactive)

Value6.3 s

60/100

10%

Network Requests Diagram

4vfr.com

251 ms

analytics.js

8 ms

4vfr.com

182 ms

header_main.jpg

158 ms

pilot.jpg

161 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 78% of them (18 requests) were addressed to the original 4vfr.com, 9% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Serv2.avitop.com. The less responsive or slowest element that took the longest time to load (955 ms) relates to the external source Serv2.avitop.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 9.5 kB (6%)

Content Size

154.6 kB

After Optimization

145.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of 4vfr.com main page is 154.6 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. 15% of websites need less resources to load. Javascripts take 86.1 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 8.5 kB

  • Original 12.1 kB
  • After minification 11.3 kB
  • After compression 3.6 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 8.5 kB or 71% of the original size.

Image Optimization

-1%

Potential reduce by 832 B

  • Original 56.4 kB
  • After minification 55.6 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. 4VFR images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 75 B

  • Original 86.1 kB
  • After minification 86.1 kB
  • After compression 86.0 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 10 (45%)

Requests Now

22

After Optimization

12

  • AJAX
  • Images
  • JavaScript

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 4VFR. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

4vfr.com accessibility score

76

Accessibility Issues

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

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

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

4vfr.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Page has valid source maps

SEO Factors

4vfr.com SEO score

58

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

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 4vfr.com 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 4vfr.com 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

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