Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 55% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

sigma-foto.de

Kamera, Digitalkamera, Blitzgerät und Objektive | SIGMA (Deutschland) GmbH

Page Load Speed

4.3 sec in total

First Response

306 ms

Resources Loaded

3.3 sec

Page Rendered

666 ms

sigma-foto.de screenshot

About Website

Click here to check amazing SIGMA Foto content for Germany. Otherwise, check out these important facts you probably never knew about sigma-foto.de

Die SIGMA Corporation ist ein international tätiger Premium-Hersteller von Objektiven, Kameras und Blitzgeräten.

Visit sigma-foto.de

Key Findings

We analyzed Sigma-foto.de page load time and found that the first response time was 306 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

sigma-foto.de performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value11.6 s

0/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value820 ms

35/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

Network Requests Diagram

sigma-foto.de

306 ms

www.sigma-foto.de

698 ms

merged-1496c00899737e363f75a2eef9821515-6022f3372c1e3f3a231d089afaaa491f.css.gzip

267 ms

merged-f96e04f16d6160b12f48ae7ae13b2d79-cc31ed99e917cfb9d1a70ad2fbfef6ee.css.gzip

282 ms

merged-fe2e366de4e41ac0b40e0968e3037cc9-29421436907806d7112250e066236cdd.css.gzip

464 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 88% of them (36 requests) were addressed to the original Sigma-foto.de, 10% (4 requests) were made to Googletagmanager.com and 2% (1 request) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Sigma-foto.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (39%)

Content Size

4.4 MB

After Optimization

2.7 MB

In fact, the total size of Sigma-foto.de main page is 4.4 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. 60% of websites need less resources to load. Images take 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 93.1 kB

  • Original 106.0 kB
  • After minification 67.9 kB
  • After compression 12.9 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 38.1 kB, which is 36% 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 93.1 kB or 88% of the original size.

Image Optimization

-33%

Potential reduce by 1.3 MB

  • Original 3.8 MB
  • After minification 2.5 MB

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. Obviously, SIGMA Foto needs image optimization as it can save up to 1.3 MB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 194.2 kB

  • Original 319.2 kB
  • After minification 313.4 kB
  • After compression 125.0 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 194.2 kB or 61% of the original size.

CSS Optimization

-85%

Potential reduce by 188.4 kB

  • Original 222.7 kB
  • After minification 185.0 kB
  • After compression 34.3 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. Sigma-foto.de needs all CSS files to be minified and compressed as it can save up to 188.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (42%)

Requests Now

24

After Optimization

14

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SIGMA Foto. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

sigma-foto.de accessibility score

83

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.

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

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

sigma-foto.de best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

sigma-foto.de SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sigma-foto.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Sigma-foto.de 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 data is detected on the main page of SIGMA Foto. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: