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international-steam-tables.com screenshot

Report Summary

  • 97

    Performance

    Renders faster than
    95% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

international-steam-tables.com

Kretzschmar, H.-J. and Wagner, W.: International Steam Tables, Third Edition

Page Load Speed

3.7 sec in total

First Response

376 ms

Resources Loaded

2.5 sec

Page Rendered

879 ms

international-steam-tables.com screenshot

About Website

Click here to check amazing International Steam Tables content. Otherwise, check out these important facts you probably never knew about international-steam-tables.com

Kretzschmar, H.-J. and Wagner, W.: International Steam Tables, Third Edition, 2019 Properties of Water and Steam Based on the Industrial Formulation IAPWS-IF97 Tables, Algorithms, Diagrams, and Onli...

Visit international-steam-tables.com

Key Findings

We analyzed International-steam-tables.com page load time and found that the first response time was 376 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

international-steam-tables.com performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

91/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value3.4 s

90/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

international-steam-tables.com

376 ms

index.php

558 ms

style.css.dist

216 ms

steamtable_kl.gif

650 ms

h-s-diagramm-kl.jpg

650 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 7% of them (1 request) were addressed to the original International-steam-tables.com, 64% (9 requests) were made to Thermodynamik.hszg.de and 29% (4 requests) were made to Thermodynamik.hs-zigr.de. The less responsive or slowest element that took the longest time to load (997 ms) relates to the external source Thermodynamik.hszg.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 7.3 kB (8%)

Content Size

95.2 kB

After Optimization

87.9 kB

  • HTML
  • Images
  • CSS

In fact, the total size of International-steam-tables.com main page is 95.2 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. Only 5% of websites need less resources to load. Images take 88.4 kB which makes up the majority of the site volume.

HTML Optimization

-53%

Potential reduce by 437 B

  • Original 818 B
  • After minification 817 B
  • After compression 381 B

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 437 B or 53% of the original size.

Image Optimization

-2%

Potential reduce by 1.6 kB

  • Original 88.4 kB
  • After minification 86.8 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. International Steam Tables images are well optimized though.

CSS Optimization

-87%

Potential reduce by 5.2 kB

  • Original 6.0 kB
  • After minification 3.4 kB
  • After compression 753 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. International-steam-tables.com needs all CSS files to be minified and compressed as it can save up to 5.2 kB or 87% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

  • AJAX
  • Images
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of International Steam Tables. According to our analytics all requests are already optimized.

Network Requests Diagram

international-steam-tables.com

international-steam-tables.com

376 ms

index.php

index.php

558 ms

style.css.dist

style.css.dist

216 ms

steamtable_kl.gif

steamtable_kl.gif

650 ms

h-s-diagramm-kl.jpg

h-s-diagramm-kl.jpg

650 ms

t-s-diagramm-kl.jpg

t-s-diagramm-kl.jpg

649 ms

pdfsmall.gif

pdfsmall.gif

651 ms

logo_thermo_bochum_2012.jpg

logo_thermo_bochum_2012.jpg

531 ms

Logo_Thermo_neu_2012.jpg

Logo_Thermo_neu_2012.jpg

530 ms

hs-logo1.gif

hs-logo1.gif

324 ms

steamtable_kl.gif

steamtable_kl.gif

253 ms

t-s-diagramm-kl.jpg

t-s-diagramm-kl.jpg

109 ms

h-s-diagramm-kl.jpg

h-s-diagramm-kl.jpg

110 ms

pdfsmall.gif

pdfsmall.gif

997 ms

Accessibility Review

international-steam-tables.com accessibility score

96

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

international-steam-tables.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

international-steam-tables.com SEO score

93

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise International-steam-tables.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 International-steam-tables.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

international-steam-tables.com

Open Graph description is not detected on the main page of International Steam Tables. 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: