Tools & Wizards About Us

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

rafisher.com

RA Fisher Associates, laser consulting, optics consulting, in-house courses in optics, laser training courses, optics training courses, forensic calcu...

Page Load Speed

885 ms in total

First Response

198 ms

Resources Loaded

611 ms

Page Rendered

76 ms

About Website

Click here to check amazing RA Fisher content. Otherwise, check out these important facts you probably never knew about rafisher.com

Provider of laser consulting, optics consulting, in-house courses in optics, laser training courses, optics training courses, forensic calculations, forensic number crunching and data analysis, Optics...

Visit rafisher.com

Key Findings

We analyzed Rafisher.com page load time and found that the first response time was 198 ms and then it took 687 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

rafisher.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

rafisher.com

198 ms

www.rafisher.com

402 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Rafisher.com and no external sources were called. The less responsive or slowest element that took the longest time to load (402 ms) belongs to the original domain Rafisher.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 34.3 kB (83%)

Content Size

41.1 kB

After Optimization

6.9 kB

  • HTML
  • JavaScript

In fact, the total size of Rafisher.com main page is 41.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 36.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 3.7 kB

  • Original 5.1 kB
  • After minification 5.0 kB
  • After compression 1.4 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 3.7 kB or 73% of the original size.

JavaScript Optimization

-85%

Potential reduce by 30.6 kB

  • Original 36.0 kB
  • After minification 23.8 kB
  • After compression 5.4 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 30.6 kB or 85% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

Accessibility Review

rafisher.com accessibility score

88

Accessibility Issues

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

Best Practices

rafisher.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

rafisher.com SEO score

75

Search Engine Optimization Advices

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 Rafisher.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 Rafisher.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

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