Tools & Wizards About Us
laserinventor.com screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

laserinventor.com

Laser Inventor| The story of.....

Page Load Speed

512 ms in total

First Response

88 ms

Resources Loaded

257 ms

Page Rendered

167 ms

laserinventor.com screenshot

About Website

Click here to check amazing Laser Inventor content. Otherwise, check out these important facts you probably never knew about laserinventor.com

This website is devoted to introducing Theodore Maiman and his invention of the laser to the world.

Visit laserinventor.com

Key Findings

We analyzed Laserinventor.com page load time and found that the first response time was 88 ms and then it took 424 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

laserinventor.com performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

laserinventor.com

88 ms

style.css

31 ms

Lawrence-Livermore-Labs.jpg

79 ms

workinglaser.jpg

57 ms

first-laser_3.jpg

43 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that all of those requests were addressed to Laserinventor.com and no external sources were called. The less responsive or slowest element that took the longest time to load (120 ms) belongs to the original domain Laserinventor.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 33.5 kB (8%)

Content Size

398.3 kB

After Optimization

364.8 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Laserinventor.com main page is 398.3 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. 20% of websites need less resources to load. Images take 387.5 kB which makes up the majority of the site volume.

HTML Optimization

-57%

Potential reduce by 3.9 kB

  • Original 6.9 kB
  • After minification 6.6 kB
  • After compression 3.0 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 3.9 kB or 57% of the original size.

Image Optimization

-8%

Potential reduce by 29.6 kB

  • Original 387.5 kB
  • After minification 357.9 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. Laser Inventor images are well optimized though.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 3.9 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.

Requests Breakdown

We found no issues to fix!

Requests Now

13

After Optimization

13

  • Images
  • CSS

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Laser Inventor. According to our analytics all requests are already optimized.

Network Requests Diagram

laserinventor.com

laserinventor.com

88 ms

style.css

style.css

31 ms

Lawrence-Livermore-Labs.jpg

Lawrence-Livermore-Labs.jpg

79 ms

workinglaser.jpg

workinglaser.jpg

57 ms

first-laser_3.jpg

first-laser_3.jpg

43 ms

Frst-Laser.jpg

Frst-Laser.jpg

64 ms

book.jpg

book.jpg

46 ms

TheLaserInventorBook.png

TheLaserInventorBook.png

99 ms

bg3.jpg

bg3.jpg

56 ms

page_bg.jpg

page_bg.jpg

36 ms

header.jpg

header.jpg

120 ms

menu_bg.jpg

menu_bg.jpg

69 ms

content_bg.jpg

content_bg.jpg

66 ms

footer.jpg

footer.jpg

67 ms

Accessibility Review

laserinventor.com accessibility score

65

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

Best Practices

laserinventor.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

laserinventor.com SEO score

67

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Laserinventor.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Laserinventor.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

laserinventor.com

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