Tools & Wizards About Us
rational-tools.com screenshot

Report Summary

  • 67

    Performance

    Renders faster than
    79% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

rational-tools.com

Page Load Speed

766 ms in total

First Response

86 ms

Resources Loaded

680 ms

Page Rendered

0 ms

rational-tools.com screenshot

About Website

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Key Findings

We analyzed Rational-tools.com page load time and found that the first response time was 86 ms and then it took 680 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

rational-tools.com performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value4.7 s

69/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.078

95/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

Network Requests Diagram

ww25.rational-tools.com

86 ms

parking.2.97.2.js

6 ms

_fd

97 ms

caf.js

99 ms

px.gif

17 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Rational-tools.com, 17% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (99 ms) relates to the external source Google.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 691 B (1%)

Content Size

56.6 kB

After Optimization

55.9 kB

  • HTML
  • JavaScript

In fact, the total size of Rational-tools.com main page is 56.6 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 55.0 kB which makes up the majority of the site volume.

HTML Optimization

-32%

Potential reduce by 512 B

  • Original 1.6 kB
  • After minification 1.6 kB
  • After compression 1.1 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. 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 512 B or 32% of the original size.

JavaScript Optimization

-0%

Potential reduce by 179 B

  • Original 55.0 kB
  • After minification 55.0 kB
  • After compression 54.8 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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • AJAX
  • Images
  • JavaScript

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rational Tools. According to our analytics all requests are already optimized.

Network Requests Diagram

ww25.rational-tools.com

ww25.rational-tools.com

86 ms

parking.2.97.2.js

parking.2.97.2.js

6 ms

_fd

_fd

97 ms

caf.js

caf.js

99 ms

px.gif

px.gif

17 ms

px.gif

px.gif

14 ms

Accessibility Review

rational-tools.com accessibility score

85

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

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

rational-tools.com 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

rational-tools.com SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rational-tools.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Rational-tools.com 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

rational-tools.com

Open Graph description is not detected on the main page of Rational Tools. 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: