Tools & Wizards About Us
cadviewer.com screenshot

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 42

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

cadviewer.com

CADViewer - CAD Viewing and Collaboration

Page Load Speed

2.9 sec in total

First Response

181 ms

Resources Loaded

2.1 sec

Page Rendered

678 ms

cadviewer.com screenshot

About Website

Visit cadviewer.com now to see the best up-to-date CADViewer content and also check out these interesting facts you probably never knew about cadviewer.com

CADViewer displays AutoCAD, MicroStation, Adobe as well as W3C Vector and Bitmap formats on all platforms with an extensive API that integrates into any framework. CADViewer handles formats like DWG, ...

Visit cadviewer.com

Key Findings

We analyzed Cadviewer.com page load time and found that the first response time was 181 ms and then it took 2.7 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

cadviewer.com performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

1/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value7.0 s

53/100

10%

Network Requests Diagram

cadviewer.com

181 ms

cadviewer.com

322 ms

bootstrap.min.css

82 ms

ionicons.min.css

160 ms

magnific-popup.css

236 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 79% of them (55 requests) were addressed to the original Cadviewer.com, 9% (6 requests) were made to Fonts.gstatic.com and 4% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (807 ms) belongs to the original domain Cadviewer.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 928.5 kB (22%)

Content Size

4.2 MB

After Optimization

3.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cadviewer.com main page is 4.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Images take 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 30.1 kB

  • Original 37.8 kB
  • After minification 31.0 kB
  • After compression 7.6 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. This page needs HTML code to be minified as it can gain 6.8 kB, which is 18% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 30.1 kB or 80% of the original size.

Image Optimization

-19%

Potential reduce by 728.1 kB

  • Original 3.8 MB
  • After minification 3.1 MB

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, CADViewer needs image optimization as it can save up to 728.1 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-50%

Potential reduce by 165.3 kB

  • Original 332.5 kB
  • After minification 331.4 kB
  • After compression 167.1 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 165.3 kB or 50% of the original size.

CSS Optimization

-9%

Potential reduce by 5.0 kB

  • Original 56.6 kB
  • After minification 56.1 kB
  • After compression 51.6 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. Cadviewer.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (31%)

Requests Now

61

After Optimization

42

  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CADViewer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cadviewer.com

cadviewer.com

181 ms

cadviewer.com

cadviewer.com

322 ms

bootstrap.min.css

bootstrap.min.css

82 ms

ionicons.min.css

ionicons.min.css

160 ms

magnific-popup.css

magnific-popup.css

236 ms

slick.css

slick.css

228 ms

style.min.css

style.min.css

229 ms

js

js

63 ms

6524b042.js

6524b042.js

651 ms

jquery.min.js

jquery.min.js

373 ms

bootstrap.min.js

bootstrap.min.js

305 ms

slick.min.js

slick.min.js

308 ms

jquery.magnific-popup.min.js

jquery.magnific-popup.min.js

376 ms

shuffle.min.js

shuffle.min.js

306 ms

gmap.js

gmap.js

310 ms

script.min.js

script.min.js

379 ms

css

css

34 ms

css

css

55 ms

css

css

54 ms

l.js

l.js

40 ms

gtm.js

gtm.js

48 ms

client.js

client.js

24 ms

client_default.css

client_default.css

24 ms

cv-logo-smaller.png

cv-logo-smaller.png

99 ms

header1-tms07.png

header1-tms07.png

377 ms

react01.png

react01.png

92 ms

angular01.png

angular01.png

91 ms

vuejs.png

vuejs.png

93 ms

npm01.png

npm01.png

94 ms

laravel.png

laravel.png

152 ms

php.png

php.png

161 ms

nodejs.png

nodejs.png

231 ms

dotnet_pure.png

dotnet_pure.png

161 ms

dotnet.png

dotnet.png

233 ms

servlets.png

servlets.png

225 ms

rails7-2.png

rails7-2.png

229 ms

GitHub-Mark-32px.png

GitHub-Mark-32px.png

232 ms

docker.png

docker.png

302 ms

youtube2.png

youtube2.png

306 ms

nextcloud.png

nextcloud.png

308 ms

cvjs_drawing_03f-4.png

cvjs_drawing_03f-4.png

533 ms

cvjs_spaceobjects_03.png

cvjs_spaceobjects_03.png

534 ms

cvjs_drawing_05.png

cvjs_drawing_05.png

534 ms

compare_new_01.png

compare_new_01.png

466 ms

visualquery_new_01.png

visualquery_new_01.png

682 ms

cvjs_drawing_06.png

cvjs_drawing_06.png

529 ms

openkm_new_02.png

openkm_new_02.png

772 ms

measurements01.png

measurements01.png

619 ms

acadhandles01.png

acadhandles01.png

612 ms

multiselect01.png

multiselect01.png

684 ms

space_images_15.png

space_images_15.png

618 ms

workorder_new_03.png

workorder_new_03.png

701 ms

json_12.png

json_12.png

703 ms

cafm_14.png

cafm_14.png

707 ms

autonomous_35.png

autonomous_35.png

777 ms

sharepoint_new_01.png

sharepoint_new_01.png

789 ms

tririga_new_01.png

tririga_new_01.png

795 ms

clouds_new_01.png

clouds_new_01.png

786 ms

json2_sample_01.png

json2_sample_01.png

790 ms

file_management_new_01.png

file_management_new_01.png

769 ms

cvjs_drawing_04.png

cvjs_drawing_04.png

776 ms

cvjs_drawing_03.png

cvjs_drawing_03.png

807 ms

CV_slide07.png

CV_slide07.png

789 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

28 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

43 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

53 ms

KFOkCnqEu92Fr1MmgVxIIzc.ttf

KFOkCnqEu92Fr1MmgVxIIzc.ttf

52 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

52 ms

ionicons.ttf

ionicons.ttf

775 ms

SlGSmQieoJcKemNecTA0h1Ry.ttf

SlGSmQieoJcKemNecTA0h1Ry.ttf

77 ms

Accessibility Review

cadviewer.com accessibility score

42

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.

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

cadviewer.com 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

cadviewer.com SEO score

73

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

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 Cadviewer.com 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 Cadviewer.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

cadviewer.com

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