Tools & Wizards About Us

Report Summary

  • 86

    Performance

    Renders faster than
    89% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

iapws.org

International Association for the Properties of Water and Steam

Page Load Speed

854 ms in total

First Response

141 ms

Resources Loaded

607 ms

Page Rendered

106 ms

About Website

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

IAPWS is an international organization concerned with the thermophysical properties of water and steam, particularly those properties of high-temperature steam, water, cycle chemistry, and aqueous sys...

Visit iapws.org

Key Findings

We analyzed Iapws.org page load time and found that the first response time was 141 ms and then it took 713 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

iapws.org performance score

86

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

72/100

25%

SI (Speed Index)

Value2.3 s

99/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.033

100/100

15%

TTI (Time to Interactive)

Value4.7 s

79/100

10%

Network Requests Diagram

iapws.org

141 ms

iapws.org

231 ms

iapws.css

57 ms

jquery.min.js

19 ms

analytics.js

20 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that 60% of them (6 requests) were addressed to the original Iapws.org, 20% (2 requests) were made to Google-analytics.com and 10% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (231 ms) belongs to the original domain Iapws.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 5.6 kB (9%)

Content Size

61.3 kB

After Optimization

55.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Iapws.org main page is 61.3 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 51.3 kB which makes up the majority of the site volume.

HTML Optimization

-60%

Potential reduce by 4.5 kB

  • Original 7.5 kB
  • After minification 7.1 kB
  • After compression 3.0 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 4.5 kB or 60% of the original size.

Image Optimization

-45%

Potential reduce by 995 B

  • Original 2.2 kB
  • After minification 1.2 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, Iapws needs image optimization as it can save up to 995 B or 45% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 51.3 kB
  • After minification 51.3 kB
  • After compression 51.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-16%

Potential reduce by 59 B

  • Original 376 B
  • After minification 376 B
  • After compression 317 B

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. Iapws.org needs all CSS files to be minified and compressed as it can save up to 59 B or 16% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Iapws. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

iapws.org accessibility score

93

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

Best Practices

iapws.org best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

iapws.org SEO score

77

Search Engine Optimization Advices

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 Iapws.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 Iapws.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

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