Tools & Wizards About Us
biddr.ch screenshot

Report Summary

  • 69

    Performance

    Renders faster than
    80% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

biddr.ch

biddr - the modern auction platform for numismatic items

Page Load Speed

2.5 sec in total

First Response

292 ms

Resources Loaded

1.6 sec

Page Rendered

643 ms

biddr.ch screenshot

About Website

Click here to check amazing Biddr content for Albania. Otherwise, check out these important facts you probably never knew about biddr.ch

Bid on ancient coins, world coins, medals, banknotes and antiquities and take part in numerous numismatic auctions worldwide.

Visit biddr.ch

Key Findings

We analyzed Biddr.ch page load time and found that the first response time was 292 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

biddr.ch performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

36/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.1 s

76/100

10%

Network Requests Diagram

biddr.ch

292 ms

biddr.ch

383 ms

www.biddr.com

652 ms

bootstrap.min.css

27 ms

stylesheet-3.0.32.min.css

34 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Biddr.ch, 96% (65 requests) were made to Media.biddr.com and 1% (1 request) were made to Biddr.com. The less responsive or slowest element that took the longest time to load (652 ms) relates to the external source Biddr.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 136.5 kB (36%)

Content Size

374.8 kB

After Optimization

238.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Biddr.ch main page is 374.8 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. 40% of websites need less resources to load. HTML takes 148.8 kB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 136.3 kB

  • Original 148.8 kB
  • After minification 109.7 kB
  • After compression 12.5 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. This page needs HTML code to be minified as it can gain 39.0 kB, which is 26% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 136.3 kB or 92% of the original size.

Image Optimization

-0%

Potential reduce by 17 B

  • Original 134.1 kB
  • After minification 134.0 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. Biddr images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 209 B

  • Original 54.5 kB
  • After minification 54.5 kB
  • After compression 54.2 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

-0%

Potential reduce by 0 B

  • Original 37.5 kB
  • After minification 37.5 kB
  • After compression 37.5 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. Biddr.ch has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 4 (18%)

Requests Now

22

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biddr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

biddr.ch

biddr.ch

292 ms

biddr.ch

biddr.ch

383 ms

www.biddr.com

www.biddr.com

652 ms

bootstrap.min.css

bootstrap.min.css

27 ms

stylesheet-3.0.32.min.css

stylesheet-3.0.32.min.css

34 ms

3450.png

3450.png

54 ms

3494.png

3494.png

51 ms

background-image.jpg

background-image.jpg

3 ms

katz_front.jpg

katz_front.jpg

57 ms

stacksbowers_front.jpg

stacksbowers_front.jpg

32 ms

heritage_front.jpg

heritage_front.jpg

33 ms

concordianumismatic_front.jpg

concordianumismatic_front.jpg

31 ms

demetercoins_front.jpg

demetercoins_front.jpg

33 ms

numisbalt_front.jpg

numisbalt_front.jpg

34 ms

londoncoins_front.jpg

londoncoins_front.jpg

33 ms

4811_front.jpg

4811_front.jpg

36 ms

savoca_front.jpg

savoca_front.jpg

34 ms

artemideaste_front.jpg

artemideaste_front.jpg

38 ms

nummitra_front.jpg

nummitra_front.jpg

37 ms

rexnumis_front.jpg

rexnumis_front.jpg

37 ms

4812_front.jpg

4812_front.jpg

38 ms

numismatiknaumann_front.jpg

numismatiknaumann_front.jpg

72 ms

timeline_front.jpg

timeline_front.jpg

73 ms

cgb_front.jpg

cgb_front.jpg

74 ms

inasta_front.jpg

inasta_front.jpg

72 ms

4828_front.jpg

4828_front.jpg

72 ms

numismad_front.jpg

numismad_front.jpg

74 ms

galleria-auctions-tokyo_front.jpg

galleria-auctions-tokyo_front.jpg

79 ms

antiumnumismatica_front.jpg

antiumnumismatica_front.jpg

78 ms

leu_front.jpg

leu_front.jpg

75 ms

aphroditeartcoins_front.jpg

aphroditeartcoins_front.jpg

76 ms

nnlondon_front.jpg

nnlondon_front.jpg

76 ms

nomos_front.jpg

nomos_front.jpg

78 ms

olympusnumismatik_front.jpg

olympusnumismatik_front.jpg

78 ms

klondike_front.jpg

klondike_front.jpg

79 ms

tibercoins_front.jpg

tibercoins_front.jpg

79 ms

teutoburger_front.jpg

teutoburger_front.jpg

79 ms

patrickguillard_front.jpg

patrickguillard_front.jpg

80 ms

chsbaselnumismatics_front.jpg

chsbaselnumismatics_front.jpg

82 ms

rhenumis_front.jpg

rhenumis_front.jpg

93 ms

spqrcollection_front.jpg

spqrcollection_front.jpg

79 ms

demos_front.jpg

demos_front.jpg

93 ms

jquery.min.js

jquery.min.js

60 ms

bootstrap.min.js

bootstrap.min.js

70 ms

general-3.0.20.min.js

general-3.0.20.min.js

72 ms

front-3.0.8.min.js

front-3.0.8.min.js

77 ms

jstz.min.js

jstz.min.js

78 ms

coinsnb_front.jpg

coinsnb_front.jpg

191 ms

jacquier_front.jpg

jacquier_front.jpg

190 ms

coinstore_front.jpg

coinstore_front.jpg

190 ms

atlasauctions_front.jpg

atlasauctions_front.jpg

189 ms

biganumismatics_front.jpg

biganumismatics_front.jpg

189 ms

eidmarauctions_front.jpg

eidmarauctions_front.jpg

187 ms

nbjgallery_front.jpg

nbjgallery_front.jpg

189 ms

ranieri_front.jpg

ranieri_front.jpg

187 ms

monedalia_front.jpg

monedalia_front.jpg

188 ms

acm_front.jpg

acm_front.jpg

155 ms

aureocalico_front.jpg

aureocalico_front.jpg

153 ms

niemczyk_front.jpg

niemczyk_front.jpg

154 ms

karamitsos_front.jpg

karamitsos_front.jpg

152 ms

pesekauctions_front.jpg

pesekauctions_front.jpg

153 ms

ibercoin_front.jpg

ibercoin_front.jpg

154 ms

varesi_front.jpg

varesi_front.jpg

151 ms

aurora_front.jpg

aurora_front.jpg

153 ms

gaertner_front.jpg

gaertner_front.jpg

152 ms

ajax-loader.gif

ajax-loader.gif

150 ms

3445.png

3445.png

11 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

8 ms

Accessibility Review

biddr.ch accessibility score

74

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

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

biddr.ch best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

biddr.ch SEO score

98

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 Biddr.ch 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 Biddr.ch 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

biddr.ch

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