Tools & Wizards About Us
sandervanvugt.com screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

sandervanvugt.com

Independent Linux trainer, author and consultant - Sander van Vugt

Page Load Speed

6.2 sec in total

First Response

248 ms

Resources Loaded

5.3 sec

Page Rendered

692 ms

sandervanvugt.com screenshot

About Website

Click here to check amazing Sander Van Vugt content for Bangladesh. Otherwise, check out these important facts you probably never knew about sandervanvugt.com

Sander van Vugt is independent Linux trainer, author, consultant. Best-selling author of books and videos about Red Hat, CompTIA Linux+ / LPIC-1 and more.

Visit sandervanvugt.com

Key Findings

We analyzed Sandervanvugt.com page load time and found that the first response time was 248 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

sandervanvugt.com performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

21/100

25%

SI (Speed Index)

Value13.6 s

2/100

10%

TBT (Total Blocking Time)

Value4,130 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.125

83/100

15%

TTI (Time to Interactive)

Value20.3 s

2/100

10%

Network Requests Diagram

sandervanvugt.com

248 ms

sandervanvugt.com

407 ms

www.sandervanvugt.com

515 ms

siteground-optimizer-combined-css-66648ff8b1506bdecafa382c1bd5cad6.css

656 ms

jquery.min.js

484 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 65% of them (46 requests) were addressed to the original Sandervanvugt.com, 14% (10 requests) were made to Youtube-nocookie.com and 8% (6 requests) were made to Jnn-pa.googleapis.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Sandervanvugt.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 202.8 kB (20%)

Content Size

1.0 MB

After Optimization

797.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sandervanvugt.com main page is 1.0 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 382.5 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 115.3 kB

  • Original 135.1 kB
  • After minification 133.3 kB
  • After compression 19.8 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 115.3 kB or 85% of the original size.

Image Optimization

-3%

Potential reduce by 11.8 kB

  • Original 382.5 kB
  • After minification 370.7 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. Sander Van Vugt images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 43.4 kB

  • Original 285.3 kB
  • After minification 285.0 kB
  • After compression 241.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 43.4 kB or 15% of the original size.

CSS Optimization

-16%

Potential reduce by 32.3 kB

  • Original 197.4 kB
  • After minification 197.4 kB
  • After compression 165.1 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. Sandervanvugt.com needs all CSS files to be minified and compressed as it can save up to 32.3 kB or 16% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (33%)

Requests Now

63

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sander Van Vugt. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sandervanvugt.com

sandervanvugt.com

248 ms

sandervanvugt.com

sandervanvugt.com

407 ms

www.sandervanvugt.com

www.sandervanvugt.com

515 ms

siteground-optimizer-combined-css-66648ff8b1506bdecafa382c1bd5cad6.css

siteground-optimizer-combined-css-66648ff8b1506bdecafa382c1bd5cad6.css

656 ms

jquery.min.js

jquery.min.js

484 ms

jquery-migrate.min.js

jquery-migrate.min.js

393 ms

stub.js

stub.js

31 ms

iubenda_cs.js

iubenda_cs.js

76 ms

wpfront-notification-bar.min.js

wpfront-notification-bar.min.js

391 ms

bootstrap.min.js

bootstrap.min.js

386 ms

cactus-themes.min.js

cactus-themes.min.js

400 ms

js

js

57 ms

jquery.formatDateTime.min.js

jquery.formatDateTime.min.js

790 ms

underscore-min.min.js

underscore-min.min.js

790 ms

placeholder.min.js

placeholder.min.js

2254 ms

lazysizes.min.js

lazysizes.min.js

792 ms

owl.carousel.min.js

owl.carousel.min.js

1241 ms

comment-reply.min.js

comment-reply.min.js

1452 ms

smooth-scroll.min.js

smooth-scroll.min.js

1289 ms

custom.min.js

custom.min.js

1381 ms

js_composer_front.min.js

js_composer_front.min.js

1362 ms

w56u7aA2x-E

w56u7aA2x-E

151 ms

q_tCStK997c

q_tCStK997c

516 ms

FGUHFhBo2ro

FGUHFhBo2ro

561 ms

Logo_SanderVanVugt_ondertitel3.png

Logo_SanderVanVugt_ondertitel3.png

558 ms

rhel-9-resources.jpg

rhel-9-resources.jpg

558 ms

icon-user-01.png

icon-user-01.png

781 ms

icon-email-01.png

icon-email-01.png

1309 ms

BTG-working-with-disk-partitions-etc-.png

BTG-working-with-disk-partitions-etc-.png

1665 ms

Red-Hat-certified-system-administrator-rhcsa-certification-path-.jpg

Red-Hat-certified-system-administrator-rhcsa-certification-path-.jpg

1392 ms

Red-Hat-Certified-Engineer-RHCE-certification-path-.jpg

Red-Hat-Certified-Engineer-RHCE-certification-path-.jpg

1666 ms

red-hat-certified-architect-rhca-certification-path-.jpg

red-hat-certified-architect-rhca-certification-path-.jpg

1665 ms

Kubernetes-and-Cloud-Native-Associater-certification-path.jpg

Kubernetes-and-Cloud-Native-Associater-certification-path.jpg

2063 ms

certified-kubernetes-application-developer-certification-path-.jpg

certified-kubernetes-application-developer-certification-path-.jpg

2157 ms

certified-kubernetes-administrator-certification-path-.jpg

certified-kubernetes-administrator-certification-path-.jpg

2308 ms

linux-foundation-certified-system-administrator-certification-path-.jpg

linux-foundation-certified-system-administrator-certification-path-.jpg

2295 ms

comptia-linux-plus-lpi-certification-path-.jpg

comptia-linux-plus-lpi-certification-path-.jpg

2356 ms

linux-fundamentals-for-windows-users-video-collection-1-1.jpg

linux-fundamentals-for-windows-users-video-collection-1-1.jpg

2355 ms

rhcsa-exam-labs.jpg

rhcsa-exam-labs.jpg

2626 ms

Red-Hat-Certified-Specialist-in-Containers-EX188.jpg

Red-Hat-Certified-Specialist-in-Containers-EX188.jpg

2735 ms

virtualization-for-everyone-450.jpg

virtualization-for-everyone-450.jpg

2796 ms

RHATcertification-tr.png

RHATcertification-tr.png

2684 ms

email-icon.png

email-icon.png

2367 ms

li.png

li.png

2372 ms

yt.png

yt.png

2387 ms

tw.png

tw.png

2401 ms

fb-icon.png

fb-icon.png

2399 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

2913 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

25 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

34 ms

www-player.css

www-player.css

15 ms

www-embed-player.js

www-embed-player.js

38 ms

base.js

base.js

66 ms

RAiHx6Z8aI87xfn3BcPOACt6MzvCMtPfFa8gMAvLcEc.js

RAiHx6Z8aI87xfn3BcPOACt6MzvCMtPfFa8gMAvLcEc.js

249 ms

embed.js

embed.js

207 ms

Create

Create

376 ms

Create

Create

378 ms

Create

Create

464 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

55 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

55 ms

arrow_down.png

arrow_down.png

2041 ms

GenerateIT

GenerateIT

99 ms

GenerateIT

GenerateIT

99 ms

GenerateIT

GenerateIT

16 ms

suse-linux-trainer-sander-van-vugt-rhel-7.jpg

suse-linux-trainer-sander-van-vugt-rhel-7.jpg

1556 ms

linux-consultant-independent-sander-300x300.png

linux-consultant-independent-sander-300x300.png

1801 ms

linux-free-training-sander-van-vugt-300x300.png

linux-free-training-sander-van-vugt-300x300.png

1754 ms

log_event

log_event

22 ms

log_event

log_event

16 ms

log_event

log_event

21 ms

iubenda.js

iubenda.js

44 ms

Accessibility Review

sandervanvugt.com accessibility score

70

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

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

sandervanvugt.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

sandervanvugt.com SEO score

91

Search Engine Optimization Advices

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 Sandervanvugt.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 Sandervanvugt.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

sandervanvugt.com

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