Tools & Wizards About Us
crockford.com screenshot

Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

crockford.com

Douglas Crockford's 2024 Appearances

Page Load Speed

628 ms in total

First Response

156 ms

Resources Loaded

304 ms

Page Rendered

168 ms

crockford.com screenshot

About Website

Visit crockford.com now to see the best up-to-date Crockford content for United States and also check out these interesting facts you probably never knew about crockford.com

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Key Findings

We analyzed Crockford.com page load time and found that the first response time was 156 ms and then it took 472 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

crockford.com performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

55/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value510 ms

57/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

crockford.com

156 ms

maniac10.gif

142 ms

crock.gif

48 ms

www.gif

94 ms

z.gif

90 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that all of those requests were addressed to Crockford.com and no external sources were called. The less responsive or slowest element that took the longest time to load (156 ms) belongs to the original domain Crockford.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 8.3 kB (69%)

Content Size

12.0 kB

After Optimization

3.7 kB

  • HTML

In fact, the total size of Crockford.com main page is 12.0 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. Only 5% of websites need less resources to load. HTML takes 12.0 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 8.3 kB

  • Original 12.0 kB
  • After minification 11.6 kB
  • After compression 3.7 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 8.3 kB or 69% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

10

After Optimization

10

  • Images

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Crockford. According to our analytics all requests are already optimized.

Network Requests Diagram

crockford.com

crockford.com

156 ms

maniac10.gif

maniac10.gif

142 ms

crock.gif

crock.gif

48 ms

www.gif

www.gif

94 ms

z.gif

z.gif

90 ms

jslintpill.gif

jslintpill.gif

96 ms

adsafepill.gif

adsafepill.gif

97 ms

jsonpill.gif

jsonpill.gif

94 ms

goodparts.gif

goodparts.gif

98 ms

midi_e.gif

midi_e.gif

129 ms

vc.gif

vc.gif

132 ms

Accessibility Review

crockford.com accessibility score

92

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

crockford.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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

crockford.com SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Crockford.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 Crockford.com main page’s claimed encoding is . 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

crockford.com

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