Tools & Wizards About Us
eyeofscience.de screenshot

Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

eyeofscience.de

microphotography, Electron microscopy - eye of science

Page Load Speed

5.2 sec in total

First Response

246 ms

Resources Loaded

4.5 sec

Page Rendered

387 ms

eyeofscience.de screenshot

About Website

Visit eyeofscience.de now to see the best up-to-date Eye Of Science content and also check out these interesting facts you probably never knew about eyeofscience.de

Scientific Photography, especially scanning electron microscopy and microphotography since 1995. Raster-Elektronenmikroskopie und Mikrofotografie seit 1995

Visit eyeofscience.de

Key Findings

We analyzed Eyeofscience.de page load time and found that the first response time was 246 ms and then it took 4.9 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

eyeofscience.de performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value3.5 s

89/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.301

39/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

eyeofscience.de

246 ms

eyeofscience.de

448 ms

www.eyeofscience.de

630 ms

colorbox.min.css

330 ms

style.css

443 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that all of those requests were addressed to Eyeofscience.de and no external sources were called. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Eyeofscience.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 34.3 kB (0%)

Content Size

7.6 MB

After Optimization

7.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Eyeofscience.de main page is 7.6 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. 20% of websites need less resources to load. Images take 7.5 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 34.1 kB

  • Original 45.3 kB
  • After minification 40.8 kB
  • After compression 11.2 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 34.1 kB or 75% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 7.5 MB
  • After minification 7.5 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. Eye Of Science images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 136 B

  • Original 37.5 kB
  • After minification 37.5 kB
  • After compression 37.4 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 44 B

  • Original 18.2 kB
  • After minification 18.2 kB
  • After compression 18.2 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. Eyeofscience.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (24%)

Requests Now

25

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Eye Of Science. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

eyeofscience.de

eyeofscience.de

246 ms

eyeofscience.de

eyeofscience.de

448 ms

www.eyeofscience.de

www.eyeofscience.de

630 ms

colorbox.min.css

colorbox.min.css

330 ms

style.css

style.css

443 ms

jquery.min.js

jquery.min.js

459 ms

colorbox.min.js

colorbox.min.js

332 ms

mobile-menu.js

mobile-menu.js

332 ms

onScroll_functionality.js

onScroll_functionality.js

331 ms

script.js

script.js

662 ms

text_accordions.js

text_accordions.js

667 ms

cookiebar.js

cookiebar.js

664 ms

eyeofscience-logo-white.svg

eyeofscience-logo-white.svg

192 ms

Pfeil.svg

Pfeil.svg

309 ms

news-72fe1330.jpg

news-72fe1330.jpg

1205 ms

Animals-dec3f581.jpg

Animals-dec3f581.jpg

1281 ms

Botany-eaabf85d.jpg

Botany-eaabf85d.jpg

1085 ms

Materials-eed8352d.jpg

Materials-eed8352d.jpg

1177 ms

Medicine-d25d9f3b.jpg

Medicine-d25d9f3b.jpg

1286 ms

Microorganisms-1865a11f.jpg

Microorganisms-1865a11f.jpg

1403 ms

Underwater-d70b2be0.jpg

Underwater-d70b2be0.jpg

2074 ms

Logo_grau-44e19f39.jpg

Logo_grau-44e19f39.jpg

1724 ms

SeenbyClairbyKahn_logo-5073956c.jpg

SeenbyClairbyKahn_logo-5073956c.jpg

1642 ms

f_logo_RGB-Grey_1024-be093d8f.svg

f_logo_RGB-Grey_1024-be093d8f.svg

1609 ms

instagramm-glyph-logo_May2016-4bdcb459.svg

instagramm-glyph-logo_May2016-4bdcb459.svg

1615 ms

clair_by_kahn-logo-7892e881.svg

clair_by_kahn-logo-7892e881.svg

1840 ms

eyeofscience-logo-white.svg

eyeofscience-logo-white.svg

1737 ms

Diatomeen%20versch%20420x-42402e37.jpg

Diatomeen%20versch%20420x-42402e37.jpg

2510 ms

Accessibility Review

eyeofscience.de accessibility score

91

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

[id] attributes on active, focusable elements are not unique

High

Some elements have a [tabindex] value greater than 0

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

eyeofscience.de 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

eyeofscience.de SEO score

100

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

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 Eyeofscience.de 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 Eyeofscience.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

eyeofscience.de

Open Graph description is not detected on the main page of Eye Of Science. 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: