Tools & Wizards About Us
centennialauctions.com screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

centennialauctions.com

Numismatic and Philatelic Auctions in NH & New England | Centennial Auctions

Page Load Speed

1.4 sec in total

First Response

117 ms

Resources Loaded

921 ms

Page Rendered

315 ms

centennialauctions.com screenshot

About Website

Click here to check amazing Centennial Auctions content. Otherwise, check out these important facts you probably never knew about centennialauctions.com

For over 20 years, Centennial Auctions has provided the public with quality numismatic and philatelic auctions. If you're looking for collectible antique coins or dollar bills, come to one of our...

Visit centennialauctions.com

Key Findings

We analyzed Centennialauctions.com page load time and found that the first response time was 117 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

centennialauctions.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

4/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value400 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.269

45/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

centennialauctions.com

117 ms

centennialauctions.com

221 ms

js

81 ms

fbevents.js

28 ms

et-core-unified-10.min.css

289 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 30% of them (13 requests) were addressed to the original Centennialauctions.com, 59% (26 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (498 ms) belongs to the original domain Centennialauctions.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 147.3 kB (24%)

Content Size

612.1 kB

After Optimization

464.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Centennialauctions.com main page is 612.1 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. 60% of websites need less resources to load. Images take 328.6 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 129.1 kB

  • Original 154.9 kB
  • After minification 153.1 kB
  • After compression 25.8 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 129.1 kB or 83% of the original size.

Image Optimization

-5%

Potential reduce by 17.0 kB

  • Original 328.6 kB
  • After minification 311.6 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. Centennial Auctions images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.1 kB

  • Original 128.4 kB
  • After minification 128.4 kB
  • After compression 127.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-7%

Potential reduce by 11 B

  • Original 168 B
  • After minification 168 B
  • After compression 157 B

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. Centennialauctions.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (47%)

Requests Now

15

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centennial Auctions. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

centennialauctions.com

centennialauctions.com

117 ms

centennialauctions.com

centennialauctions.com

221 ms

js

js

81 ms

fbevents.js

fbevents.js

28 ms

et-core-unified-10.min.css

et-core-unified-10.min.css

289 ms

jquery.min.js

jquery.min.js

285 ms

jquery-migrate.min.js

jquery-migrate.min.js

285 ms

scripts.min.js

scripts.min.js

57 ms

common.js

common.js

351 ms

Centennial-original.png

Centennial-original.png

368 ms

alpenglow_logo-1.jpg

alpenglow_logo-1.jpg

350 ms

scofield_logo-1.png

scofield_logo-1.png

445 ms

ANA-logo.jpg

ANA-logo.jpg

498 ms

js

js

155 ms

analytics.js

analytics.js

22 ms

collect

collect

150 ms

new_home_fi4.jpg

new_home_fi4.jpg

258 ms

0QI6MX1D_JOuGQbT0gvTJPa787wsuxJPkqs.woff

0QI6MX1D_JOuGQbT0gvTJPa787wsuxJPkqs.woff

85 ms

0QI6MX1D_JOuGQbT0gvTJPa787wsuxJPkqg.ttf

0QI6MX1D_JOuGQbT0gvTJPa787wsuxJPkqg.ttf

94 ms

0QI6MX1D_JOuGQbT0gvTJPa787weuxJPkqs.woff

0QI6MX1D_JOuGQbT0gvTJPa787weuxJPkqs.woff

94 ms

0QI6MX1D_JOuGQbT0gvTJPa787weuxJPkqg.ttf

0QI6MX1D_JOuGQbT0gvTJPa787weuxJPkqg.ttf

95 ms

0QI6MX1D_JOuGQbT0gvTJPa787zAvBJPkqs.woff

0QI6MX1D_JOuGQbT0gvTJPa787zAvBJPkqs.woff

95 ms

0QI6MX1D_JOuGQbT0gvTJPa787zAvBJPkqg.ttf

0QI6MX1D_JOuGQbT0gvTJPa787zAvBJPkqg.ttf

96 ms

0QI6MX1D_JOuGQbT0gvTJPa787z5vBJPkqs.woff

0QI6MX1D_JOuGQbT0gvTJPa787z5vBJPkqs.woff

96 ms

0QI6MX1D_JOuGQbT0gvTJPa787z5vBJPkqg.ttf

0QI6MX1D_JOuGQbT0gvTJPa787z5vBJPkqg.ttf

99 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjovoSmYWRl.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjovoSmYWRl.woff

98 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjovoSmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjovoSmYWRm.ttf

128 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojISmYWRl.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojISmYWRl.woff

99 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojISmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojISmYWRm.ttf

128 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjo0oSmYWRl.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjo0oSmYWRl.woff

128 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjo0oSmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjo0oSmYWRm.ttf

130 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoDISmYWRl.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoDISmYWRl.woff

130 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoDISmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoDISmYWRm.ttf

132 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojIWmYWRl.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojIWmYWRl.woff

131 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojIWmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojIWmYWRm.ttf

131 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoUoOmYWRl.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoUoOmYWRl.woff

131 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoUoOmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoUoOmYWRm.ttf

132 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYWRl.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYWRl.woff

132 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYWRm.ttf

133 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoDIOmYWRl.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoDIOmYWRl.woff

133 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoDIOmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoDIOmYWRm.ttf

176 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoJYOmYWRl.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoJYOmYWRl.woff

133 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoJYOmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoJYOmYWRm.ttf

153 ms

modules.woff

modules.woff

183 ms

Accessibility Review

centennialauctions.com accessibility score

83

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

centennialauctions.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

SEO Factors

centennialauctions.com SEO score

99

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 Centennialauctions.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 Centennialauctions.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

centennialauctions.com

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