Tools & Wizards About Us
seiler.it screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

seiler.it

Sven Seiler – Ein Mix aus IT, Web, Fotografie und Wissenschaft

Page Load Speed

5.3 sec in total

First Response

398 ms

Resources Loaded

4.5 sec

Page Rendered

416 ms

seiler.it screenshot

About Website

Visit seiler.it now to see the best up-to-date Seiler content for Russia and also check out these interesting facts you probably never knew about seiler.it

Bis Ende März 2013 war ich als Wissenschaftlicher Mitarbeiter an der Hochschule Bochum tätig. Nun arbeite ich als Projektmanager bei der Materna GmbH in Dortmund und betreue dort Projekte in den Berei...

Visit seiler.it

Key Findings

We analyzed Seiler.it page load time and found that the first response time was 398 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

seiler.it performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value12.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.7 s

0/100

25%

SI (Speed Index)

Value26.2 s

0/100

10%

TBT (Total Blocking Time)

Value1,650 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.11

87/100

15%

TTI (Time to Interactive)

Value32.5 s

0/100

10%

Network Requests Diagram

seiler.it

398 ms

seiler.it

507 ms

wp-emoji-release.min.js

97 ms

crayon.min.css

189 ms

layerslider.css

286 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that 47% of them (41 requests) were addressed to the original Seiler.it, 14% (12 requests) were made to I1.wp.com and 14% (12 requests) were made to I2.wp.com. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source I0.wp.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (67%)

Content Size

2.6 MB

After Optimization

859.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Seiler.it main page is 2.6 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. 55% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 190.4 kB

  • Original 228.6 kB
  • After minification 224.8 kB
  • After compression 38.2 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 190.4 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 4.2 kB

  • Original 382.5 kB
  • After minification 378.2 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. Seiler images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 982.8 kB

  • Original 1.3 MB
  • After minification 1.2 MB
  • After compression 359.8 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 982.8 kB or 73% of the original size.

CSS Optimization

-87%

Potential reduce by 552.9 kB

  • Original 635.9 kB
  • After minification 567.1 kB
  • After compression 83.0 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. Seiler.it needs all CSS files to be minified and compressed as it can save up to 552.9 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (45%)

Requests Now

78

After Optimization

43

  • Images
  • JavaScript
  • CSS

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seiler. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

seiler.it

seiler.it

398 ms

seiler.it

seiler.it

507 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

97 ms

crayon.min.css

crayon.min.css

189 ms

layerslider.css

layerslider.css

286 ms

css

css

74 ms

foobox.noie7.min.css

foobox.noie7.min.css

297 ms

wpctc.min.css

wpctc.min.css

293 ms

css

css

86 ms

style.css

style.css

494 ms

font-awesome.css

font-awesome.css

280 ms

animations.css

animations.css

290 ms

jetpack.css

jetpack.css

377 ms

jquery.min.js

jquery.min.js

74 ms

quicktags.min.js

quicktags.min.js

374 ms

crayon.te.min.js

crayon.te.min.js

395 ms

photon.js

photon.js

383 ms

jquery.tagcanvas.min.js

jquery.tagcanvas.min.js

391 ms

wpctc.tagcanvas.min.js

wpctc.tagcanvas.min.js

460 ms

jquery.style.min.js

jquery.style.min.js

462 ms

wp-category-tag-cloud.min.js

wp-category-tag-cloud.min.js

466 ms

devicepx-jetpack.js

devicepx-jetpack.js

138 ms

gprofiles.js

gprofiles.js

168 ms

wpgroho.js

wpgroho.js

482 ms

comment-reply.min.js

comment-reply.min.js

480 ms

main.min.js

main.min.js

1210 ms

foobox.debug.js

foobox.debug.js

704 ms

wp-embed.min.js

wp-embed.min.js

613 ms

justified-image-grid-min.js

justified-image-grid-min.js

624 ms

greensock.js

greensock.js

624 ms

layerslider.kreaturamedia.jquery.js

layerslider.kreaturamedia.jquery.js

624 ms

layerslider.transitions.js

layerslider.transitions.js

658 ms

layerslider.kreaturamedia.jquery.js

layerslider.kreaturamedia.jquery.js

937 ms

greensock.js

greensock.js

941 ms

e-201609.js

e-201609.js

34 ms

ga.js

ga.js

134 ms

251.jpg

251.jpg

977 ms

241.jpg

241.jpg

1055 ms

171.jpg

171.jpg

1242 ms

132.jpg

132.jpg

86 ms

104.jpg

104.jpg

85 ms

53.jpg

53.jpg

87 ms

35.jpg

35.jpg

173 ms

211.jpg

211.jpg

84 ms

181.jpg

181.jpg

84 ms

162.jpg

162.jpg

1052 ms

141.jpg

141.jpg

1582 ms

114.jpg

114.jpg

89 ms

221.jpg

221.jpg

1173 ms

152.jpg

152.jpg

835 ms

122.jpg

122.jpg

975 ms

115.jpg

115.jpg

1424 ms

94.jpg

94.jpg

1363 ms

84.jpg

84.jpg

1830 ms

74.jpg

74.jpg

976 ms

64.jpg

64.jpg

977 ms

pattern3.png

pattern3.png

171 ms

sven_seiler_logo_small.png

sven_seiler_logo_small.png

374 ms

sven_seiler_logo.png

sven_seiler_logo.png

379 ms

SB-Logo-BW.png

SB-Logo-BW.png

380 ms

rss.png

rss.png

618 ms

BCFBp4rt5gxxFrX6F12DKvesZW2xOQ-xsNqO47m55DA.woff

BCFBp4rt5gxxFrX6F12DKvesZW2xOQ-xsNqO47m55DA.woff

106 ms

wMZpbUtcCo9GUabw9JODeobN6UDyHWBl620a-IRfuBk.woff

wMZpbUtcCo9GUabw9JODeobN6UDyHWBl620a-IRfuBk.woff

120 ms

icomoon.woff

icomoon.woff

568 ms

YDAoLskQQ5MOAgvHUQCcLRTHiN2BPBirwIkMLKUspj4.woff

YDAoLskQQ5MOAgvHUQCcLRTHiN2BPBirwIkMLKUspj4.woff

314 ms

We_iSDqttE3etzfdfhuPRWwXwFHHZlCwprwJOQ-Se7k.woff

We_iSDqttE3etzfdfhuPRWwXwFHHZlCwprwJOQ-Se7k.woff

482 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

783 ms

__utm.gif

__utm.gif

13 ms

collect

collect

480 ms

cologne_cathedral_bridge.jpg

cologne_cathedral_bridge.jpg

1707 ms

Cologne_rhine_kranbauten_two.jpg

Cologne_rhine_kranbauten_two.jpg

203 ms

Cologne_rhine_cathedral.jpg

Cologne_rhine_cathedral.jpg

1503 ms

zypressen_allee_italien.JPG

zypressen_allee_italien.JPG

288 ms

saturnia_italy.jpg

saturnia_italy.jpg

2573 ms

pienza.jpg

pienza.jpg

288 ms

london_eye_at_night.jpg

london_eye_at_night.jpg

1584 ms

spring_in_italy.jpg

spring_in_italy.jpg

2678 ms

2013-10-23_IMG_2878_2878.jpg

2013-10-23_IMG_2878_2878.jpg

2478 ms

Cologne_rhine_kranbauten.jpg

Cologne_rhine_kranbauten.jpg

2193 ms

cologne_squared_kranbauten.jpg

cologne_squared_kranbauten.jpg

2152 ms

foobox.svg

foobox.svg

278 ms

foobox.woff

foobox.woff

278 ms

hovercard.css

hovercard.css

123 ms

services.css

services.css

306 ms

skin.css

skin.css

120 ms

g.gif

g.gif

102 ms

blank.gif

blank.gif

95 ms

skin.png

skin.png

92 ms

Accessibility Review

seiler.it accessibility score

85

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

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

seiler.it 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

seiler.it SEO score

81

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

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

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Seiler.it can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed German language. Our system also found out that Seiler.it 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

seiler.it

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