Tools & Wizards About Us
ndt.net screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 66

    SEO

    Google-friendlier than
    25% of websites

ndt.net

NDT.net - Nondestructive Testing (NDT) Portal & Open Access Archive

Page Load Speed

5.8 sec in total

First Response

517 ms

Resources Loaded

4.5 sec

Page Rendered

790 ms

ndt.net screenshot

About Website

Welcome to ndt.net homepage info - get ready to check NDT best content for United States right away, or after learning these important things about ndt.net

The Largest Portal of Nondestructive Testing (NDT) Open Access Archive, Conference Proceedings, Journal Articles, News, Products, Services. Professional Networking, Exhibition, Forums, Jobs

Visit ndt.net

Key Findings

We analyzed Ndt.net page load time and found that the first response time was 517 ms and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

ndt.net performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value320 ms

77/100

30%

CLS (Cumulative Layout Shift)

Value0.396

26/100

15%

TTI (Time to Interactive)

Value9.0 s

34/100

10%

Network Requests Diagram

ndt.net

517 ms

ndt.net

432 ms

www.ndt.net

1419 ms

index.css

312 ms

modal-video.min.css

308 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 88% of them (87 requests) were addressed to the original Ndt.net, 4% (4 requests) were made to Googletagmanager.com and 4% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Ndt.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 378.2 kB (39%)

Content Size

965.8 kB

After Optimization

587.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ndt.net main page is 965.8 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. 45% of websites need less resources to load. Images take 486.1 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 87.3 kB

  • Original 107.2 kB
  • After minification 99.2 kB
  • After compression 19.9 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 87.3 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 27.8 kB

  • Original 486.1 kB
  • After minification 458.3 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. NDT images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 205.7 kB

  • Original 305.7 kB
  • After minification 266.8 kB
  • After compression 100.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 205.7 kB or 67% of the original size.

CSS Optimization

-86%

Potential reduce by 57.4 kB

  • Original 66.8 kB
  • After minification 42.9 kB
  • After compression 9.4 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. Ndt.net needs all CSS files to be minified and compressed as it can save up to 57.4 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (27%)

Requests Now

96

After Optimization

70

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NDT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ndt.net

ndt.net

517 ms

ndt.net

ndt.net

432 ms

www.ndt.net

www.ndt.net

1419 ms

index.css

index.css

312 ms

modal-video.min.css

modal-video.min.css

308 ms

style.css

style.css

304 ms

js

js

60 ms

js

js

101 ms

jquery-1.11.1.min.js

jquery-1.11.1.min.js

559 ms

easy-ticker.js

easy-ticker.js

383 ms

scripts.js

scripts.js

382 ms

lightbox.css

lightbox.css

415 ms

jquery-modal-video.min.js

jquery-modal-video.min.js

414 ms

script-index.js

script-index.js

524 ms

lightbox.js

lightbox.js

433 ms

js

js

40 ms

analytics.js

analytics.js

59 ms

container_C0ZYm8YR.js

container_C0ZYm8YR.js

282 ms

piwik.js

piwik.js

283 ms

collect

collect

20 ms

collect

collect

20 ms

collect

collect

6 ms

collect

collect

13 ms

js

js

49 ms

collect

collect

16 ms

ga-audiences

ga-audiences

74 ms

ga-audiences

ga-audiences

73 ms

close_icon.png

close_icon.png

114 ms

loading.gif

loading.gif

126 ms

ndtnet_202305.png

ndtnet_202305.png

139 ms

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151 ms

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157 ms

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164 ms

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221 ms

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235 ms

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245 ms

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257 ms

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260 ms

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267 ms

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334 ms

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347 ms

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359 ms

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374 ms

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377 ms

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387 ms

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443 ms

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462 ms

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475 ms

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505 ms

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492 ms

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516 ms

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554 ms

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579 ms

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592 ms

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621 ms

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627 ms

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638 ms

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668 ms

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705 ms

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702 ms

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678 ms

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689 ms

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694 ms

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667 ms

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696 ms

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685 ms

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683 ms

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696 ms

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684 ms

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678 ms

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701 ms

29484-1.jpg

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693 ms

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29485-1.jpg

686 ms

right.png

right.png

698 ms

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715 ms

17_1508.jpg

17_1508.jpg

678 ms

39_128.png

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705 ms

37_770.jpg

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693 ms

192_1430.jpg

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679 ms

right.svg

right.svg

689 ms

202207-DRTECH.gif

202207-DRTECH.gif

709 ms

wcndt_2024.png

wcndt_2024.png

667 ms

NDT_Days_2024.png

NDT_Days_2024.png

687 ms

cinde_80px.jpg

cinde_80px.jpg

688 ms

icendt_2024_2.png

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683 ms

Wood2023.png

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683 ms

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683 ms

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669 ms

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680 ms

subscribe.svg

subscribe.svg

680 ms

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664 ms

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667 ms

Twitter.svg

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675 ms

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675 ms

Youtube.svg

Youtube.svg

681 ms

x-mark-36x36.svg

x-mark-36x36.svg

690 ms

202404-Eddyfi-PAUT-Skyscraper.png

202404-Eddyfi-PAUT-Skyscraper.png

879 ms

close.gif

close.gif

681 ms

piwik.php

piwik.php

909 ms

Accessibility Review

ndt.net accessibility score

54

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

ndt.net best practices score

58

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

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

ndt.net SEO score

66

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ndt.net can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Ndt.net 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

ndt.net

Open Graph data is detected on the main page of NDT. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: