Tools & Wizards About Us
holscience.com screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

holscience.com

Home - Science Interactive

Page Load Speed

4.3 sec in total

First Response

1.1 sec

Resources Loaded

2.9 sec

Page Rendered

306 ms

holscience.com screenshot

About Website

Click here to check amazing Hol Science content for United States. Otherwise, check out these important facts you probably never knew about holscience.com

Discover Science Interactive's hands-on labs and virtual labs for online science courses, giving students an authentic lab experiences.

Visit holscience.com

Key Findings

We analyzed Holscience.com page load time and found that the first response time was 1.1 sec and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

holscience.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value11.2 s

0/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value2,330 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.1 s

4/100

10%

Network Requests Diagram

holscience.com

1145 ms

reset.css

61 ms

bootstrap.css

177 ms

style.css

115 ms

dashicons.min.css

117 ms

Our browser made a total of 134 requests to load all elements on the main page. We found that 81% of them (109 requests) were addressed to the original Holscience.com, 6% (8 requests) were made to Google-analytics.com and 2% (3 requests) were made to Static.addtoany.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Holscience.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.9 MB (43%)

Content Size

4.3 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Holscience.com main page is 4.3 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. 70% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 107.9 kB

  • Original 130.7 kB
  • After minification 127.1 kB
  • After compression 22.8 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 107.9 kB or 83% of the original size.

Image Optimization

-22%

Potential reduce by 542.6 kB

  • Original 2.5 MB
  • After minification 1.9 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, Hol Science needs image optimization as it can save up to 542.6 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 531.0 kB

  • Original 833.7 kB
  • After minification 779.1 kB
  • After compression 302.8 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 531.0 kB or 64% of the original size.

CSS Optimization

-79%

Potential reduce by 679.7 kB

  • Original 865.6 kB
  • After minification 771.0 kB
  • After compression 186.0 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. Holscience.com needs all CSS files to be minified and compressed as it can save up to 679.7 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 78 (62%)

Requests Now

126

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 126 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hol Science. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 45 to 1 for JavaScripts and from 27 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

holscience.com

holscience.com

1145 ms

reset.css

reset.css

61 ms

bootstrap.css

bootstrap.css

177 ms

style.css

style.css

115 ms

dashicons.min.css

dashicons.min.css

117 ms

thickbox.css

thickbox.css

61 ms

css

css

31 ms

jquery-ui.css

jquery-ui.css

117 ms

style.css

style.css

88 ms

themes.style.css

themes.style.css

106 ms

themesTabs.style.css

themesTabs.style.css

116 ms

font-awesome.css

font-awesome.css

161 ms

styles.css

styles.css

141 ms

juiz_last_tweet.css

juiz_last_tweet.css

140 ms

social_widget.css

social_widget.css

142 ms

style.css

style.css

143 ms

frontend.css

frontend.css

168 ms

public.css

public.css

168 ms

settings.css

settings.css

230 ms

social_icons_widget.css

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219 ms

shortcodes.css

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220 ms

style.css

style.css

307 ms

custom.css

custom.css

221 ms

custom.css

custom.css

225 ms

addtoany.min.css

addtoany.min.css

224 ms

foobar.2.6.css

foobar.2.6.css

225 ms

jquery.js

jquery.js

281 ms

jquery-migrate.min.js

jquery-migrate.min.js

232 ms

jquery.scrollTo.js

jquery.scrollTo.js

232 ms

loewy_blog.js

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242 ms

jquery.themepunch.tools.min.js

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343 ms

jquery.themepunch.revolution.min.js

jquery.themepunch.revolution.min.js

368 ms

jquery.foobar.2.4.min.js

jquery.foobar.2.4.min.js

253 ms

jquery.cookie.js

jquery.cookie.js

270 ms

thickbox.js

thickbox.js

214 ms

underscore.min.js

underscore.min.js

230 ms

shortcode.min.js

shortcode.min.js

288 ms

media-upload.min.js

media-upload.min.js

289 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

290 ms

jquery.easing.js

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289 ms

masonry.min.js

masonry.min.js

281 ms

jquery.masonry.min.js

jquery.masonry.min.js

262 ms

jquery.flexslider-min.js

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255 ms

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255 ms

responsive.js

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255 ms

comment-reply.min.js

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303 ms

core.min.js

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278 ms

widget.min.js

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279 ms

accordion.min.js

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281 ms

tabs.min.js

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280 ms

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264 ms

scripts.js

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259 ms

zerospam.js

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258 ms

public-min.js

public-min.js

212 ms

responsive.js

responsive.js

317 ms

hoverIntent.min.js

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315 ms

jquery.superfish.js

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317 ms

jquery.placeholder.js

jquery.placeholder.js

315 ms

contact.js

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314 ms

twitter-text.js

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314 ms

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309 ms

jquery.cycle.min.js

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310 ms

shortcodes.js

shortcodes.js

310 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

302 ms

ga.js

ga.js

40 ms

analytics.js

analytics.js

26 ms

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b064cf4e57e91f9fe76b43ce428258ba_normal.png

27 ms

Hands-On-Learning-logo-e1405448930487.png

Hands-On-Learning-logo-e1405448930487.png

240 ms

background.png

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178 ms

layer1-e1410903736130.png

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149 ms

text2a.png

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149 ms

layer-globe-e1410904133157.png

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153 ms

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151 ms

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151 ms

background1.png

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597 ms

text11.png

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289 ms

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300 ms

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290 ms

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289 ms

layer2-e1410191625764.png

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305 ms

block-text.png

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348 ms

instructors-click-here4.png

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318 ms

students-click-here3.png

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318 ms

labs-home-banner3-e1411586482424.png

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560 ms

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340 ms

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545 ms

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354 ms

__utm.gif

__utm.gif

64 ms

collect

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97 ms

collect

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41 ms

no_image_recentposts.jpg

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445 ms

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DTLC-1-e1438796344961-55x55.png

445 ms

student-orders2.png

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442 ms

QM-sidebar.png

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488 ms

webinars-sidebar-300x391.png

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477 ms

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550 ms

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175 ms

news-signup-e1414980948865.png

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221 ms

holscience.com

holscience.com

1002 ms

sprite.png

sprite.png

461 ms

twitter.png

twitter.png

460 ms

page.js

page.js

28 ms

MG9KbUZFchDs94Tbv9U-paCWcynf_cDxXwCLxiixG1c.ttf

MG9KbUZFchDs94Tbv9U-paCWcynf_cDxXwCLxiixG1c.ttf

23 ms

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25 ms

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77 ms

collect

collect

141 ms

invite-referrals-1.0.js

invite-referrals-1.0.js

132 ms

sm13.html

sm13.html

98 ms

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collect

106 ms

icons.15.svg.css

icons.15.svg.css

87 ms

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ga-audiences

264 ms

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262 ms

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262 ms

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30 ms

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227 ms

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21 ms

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43 ms

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loader.gif

46 ms

coloredbg.png

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45 ms

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46 ms

bullet.png

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131 ms

large_left.png

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131 ms

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large_right.png

132 ms

loadingAnimation.gif

loadingAnimation.gif

64 ms

overlay.png

overlay.png

131 ms

menu_arrows.png

menu_arrows.png

128 ms

settings

settings

124 ms

roundtrip.js

roundtrip.js

13 ms

PJQJZQ5YMFEXFP5NDBHVCW.js

PJQJZQ5YMFEXFP5NDBHVCW.js

163 ms

Accessibility Review

holscience.com accessibility score

98

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.

Best Practices

holscience.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

holscience.com SEO score

97

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

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 Holscience.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 Holscience.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

holscience.com

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