Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

catalog.antiquorum.swiss

Watches and Jewels Auctions | Antiquorum Auctioneers since 1974

Page Load Speed

5.1 sec in total

First Response

153 ms

Resources Loaded

2.2 sec

Page Rendered

2.8 sec

catalog.antiquorum.swiss screenshot

About Website

Click here to check amazing Catalog Antiquorum content for United States. Otherwise, check out these important facts you probably never knew about catalog.antiquorum.swiss

Antiquorum is the world's premiere auction house of modern and vintage timepieces. Buy or sell watches like Patek Philippe, Rolex and Audemars Piguet. Expert appraisals, valuations and more. Browse ou...

Visit catalog.antiquorum.swiss

Key Findings

We analyzed Catalog.antiquorum.swiss page load time and found that the first response time was 153 ms and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

catalog.antiquorum.swiss performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value7.5 s

26/100

10%

TBT (Total Blocking Time)

Value5,640 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value14.5 s

9/100

10%

Network Requests Diagram

catalog.antiquorum.swiss

153 ms

catalog.antiquorum.swiss

396 ms

css

102 ms

css

129 ms

application-5d081c8bd756b1dea74c46d44438a09c8a06be1b06d8027c7a327faacc48ec76.css

229 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 13% of them (7 requests) were addressed to the original Catalog.antiquorum.swiss, 57% (31 requests) were made to Antiquorum-swiss-assets.s3.us-west-2.amazonaws.com and 6% (3 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Antiquorum-swiss-assets.s3.us-west-2.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 129.0 kB (13%)

Content Size

1.0 MB

After Optimization

874.9 kB

In fact, the total size of Catalog.antiquorum.swiss main page is 1.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 791.7 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 54.6 kB

  • Original 63.5 kB
  • After minification 51.0 kB
  • After compression 8.8 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. This page needs HTML code to be minified as it can gain 12.5 kB, which is 20% 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 54.6 kB or 86% of the original size.

Image Optimization

-9%

Potential reduce by 73.8 kB

  • Original 791.7 kB
  • After minification 717.9 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. Catalog Antiquorum images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 232 B

  • Original 61.7 kB
  • After minification 61.7 kB
  • After compression 61.5 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 296 B

  • Original 87.0 kB
  • After minification 87.0 kB
  • After compression 86.7 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. Catalog.antiquorum.swiss has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (20%)

Requests Now

50

After Optimization

40

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Catalog Antiquorum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

catalog.antiquorum.swiss accessibility score

66

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.

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 IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

catalog.antiquorum.swiss best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

catalog.antiquorum.swiss SEO score

91

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Catalog.antiquorum.swiss 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 Catalog.antiquorum.swiss 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

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