Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

f3a.flier.jp

50の手習い。。。ラジコン飛行機を飛ばそう!

Page Load Speed

3.4 sec in total

First Response

623 ms

Resources Loaded

2.5 sec

Page Rendered

249 ms

f3a.flier.jp screenshot

About Website

Visit f3a.flier.jp now to see the best up-to-date F 3 A Flier content for Japan and also check out these interesting facts you probably never knew about f3a.flier.jp

ラジコンのネタがありません!日々のことをたまに書きます。

Visit f3a.flier.jp

Key Findings

We analyzed F3a.flier.jp page load time and found that the first response time was 623 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

f3a.flier.jp performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

49/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value4,630 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.052

99/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

f3a.flier.jp

623 ms

def.css

208 ms

lightbox.css

344 ms

prototype.js

603 ms

scriptaculous.js

377 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 75% of them (24 requests) were addressed to the original F3a.flier.jp, 9% (3 requests) were made to Users069.lolipop.jp and 6% (2 requests) were made to Www14.a8.net. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Users069.lolipop.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 255.0 kB (69%)

Content Size

371.6 kB

After Optimization

116.6 kB

In fact, the total size of F3a.flier.jp main page is 371.6 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. 20% of websites need less resources to load. Javascripts take 236.3 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 35.1 kB

  • Original 38.7 kB
  • After minification 37.0 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 35.1 kB or 91% of the original size.

Image Optimization

-18%

Potential reduce by 14.6 kB

  • Original 79.9 kB
  • After minification 65.3 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. Obviously, F 3 A Flier needs image optimization as it can save up to 14.6 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-81%

Potential reduce by 191.6 kB

  • Original 236.3 kB
  • After minification 173.5 kB
  • After compression 44.8 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 191.6 kB or 81% of the original size.

CSS Optimization

-82%

Potential reduce by 13.8 kB

  • Original 16.7 kB
  • After minification 13.5 kB
  • After compression 3.0 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. F3a.flier.jp needs all CSS files to be minified and compressed as it can save up to 13.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (42%)

Requests Now

31

After Optimization

18

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of F 3 A Flier. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

f3a.flier.jp accessibility score

53

Accessibility Issues

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.

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

f3a.flier.jp best practices score

75

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

Low

Detected JavaScript libraries

SEO Factors

f3a.flier.jp 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

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise F3a.flier.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese 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 F3a.flier.jp 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 F 3 A Flier. 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: