Access lawrencehallofscience.org. The Lawrence Hall of Science – The public science center of the University of California, Berkeley.

Report Summary

About Website

Visit lawrencehallofscience.org now to see the best up-to-date Lawrence Hall Of Science content for United States and also check out these interesting facts you probably never knew about lawrencehallofscience.org

Fun, learning, and research are in our DNA. At The Lawrence Hall of Science, discovery runs through everything we do....

Visit lawrencehallofscience.org

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value5.3 s

57/100

10%

TBT (Total Blocking Time)

Value460 ms

62/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

lawrencehallofscience.org

21 ms

lawrencehallofscience.org

607 ms

js

176 ms

gtm.js

222 ms

style.min.css

16 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 91% of them (48 requests) were addressed to the original Lawrencehallofscience.org, 8% (4 requests) were made to Googletagmanager.com and 2% (1 request) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (607 ms) belongs to the original domain Lawrencehallofscience.org.

Content Size

4.4 MB

After Optimization

4.1 MB

In fact, the total size of Lawrencehallofscience.org main page is 4.4 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. Only a small number of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 134.0 kB

Original 183.5 kB
After minification 180.2 kB
After compression 49.5 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 134.0 kB or 73% of the original size.

Image Optimization

-1%

Potential reduce by 33.1 kB

Original 3.9 MB
After minification 3.8 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. Lawrence Hall Of Science images are well optimized though.

JavaScript Optimization

-41%

Potential reduce by 59.0 kB

Original 145.1 kB
After minification 111.0 kB
After compression 86.0 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 59.0 kB or 41% of the original size.

CSS Optimization

-36%

Potential reduce by 61.6 kB

Original 173.3 kB
After minification 173.3 kB
After compression 111.8 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. Lawrencehallofscience.org needs all CSS files to be minified and compressed as it can save up to 61.6 kB or 36% of the original size.

Requests Now

After Optimization

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lawrence Hall Of 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 12 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

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/).

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 Lawrencehallofscience.org 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 Lawrencehallofscience.org 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

lawrencehallofscience.org

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

Report Summary

Performance

Accessibility

Best Practices

SEO

The Lawrence Hall of Science – The public science center of the University of California, Berkeley.

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

lawrencehallofscience.org

lawrencehallofscience.org

js

gtm.js

style.min.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

lawrencehallofscience.org

lawrencehallofscience.org

js

gtm.js

style.min.css

index.css

frontend.css

jquery.min.js

jquery-migrate.min.js

jquery-accessibleMegaMenu.js

accordion-blocks.min.js

front-end.js

slick.min.js

filterlibrary.js

list-style.svg

green_slime_hero_winter.jpg

The-Lawrence-Plaza.png

Climate-Ambassadors-Hero-300x300.jpg

Camps-Story-Hero-300x300.jpg

Spring-Break-NEws-Story-Hero-300x300.jpg

Biotech-Story-Hero-300x300.jpg

CCASN-Hero-300x300.jpg

five-dollar-day-300x300.jpg

01-Wings-Over-Water-Platte-River-Nebraska-Sandhill-Cranes-Sunrise-600x454.jpg

dot-uv-275.png

exhibits-275.jpg

dot-gld-275.png

camps-hover.jpg

dot-grn275.png

butterfly-ONL.jpg

dot-red-275.png

dq-275.jpg

home-supernova-updated.svg

Amgen_Biotech_Teacher.jpg

hall_epic_staff_teaching.jpg

20190725_IDW-Lawrence_0993-1440x961.jpg

20190725_IDW-Lawrence_1004-1440x961.jpg

concept-1868728_1920-1440x960.jpg

teachers_at_hall_workshop.jpg

Schmitz_LHS_Lafayette_5011-1440x960.jpg

Schmitz_LHS_4BEV3753-1.jpg

TheLawrenceHallofScience-UCBerkeley_White-300x300.png

external-link-white.svg