Tools & Wizards About Us
sepios.org screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

sepios.org

Sepios: Nautical Robot

Page Load Speed

4.6 sec in total

First Response

235 ms

Resources Loaded

3.2 sec

Page Rendered

1.2 sec

sepios.org screenshot

About Website

Visit sepios.org now to see the best up-to-date Sepios content and also check out these interesting facts you probably never knew about sepios.org

Sepios is a student project at ETH Zürich. Its aim is to design a hightech nautical robot with undulating fins, allowing for omnidirectional locomotion capabilities.

Visit sepios.org

Key Findings

We analyzed Sepios.org page load time and found that the first response time was 235 ms and then it took 4.3 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

sepios.org performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value12.7 s

3/100

10%

TBT (Total Blocking Time)

Value2,120 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value27.0 s

0/100

10%

Network Requests Diagram

sepios.org

235 ms

sepios.org

635 ms

bootstrap.min.css

380 ms

styles.css

285 ms

jquery-2.0.3.min.js

308 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 64% of them (72 requests) were addressed to the original Sepios.org, 8% (9 requests) were made to P3d.in and 6% (7 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Sepios.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.8 MB (31%)

Content Size

15.7 MB

After Optimization

10.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sepios.org main page is 15.7 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. Only a small number of websites need less resources to load. Images take 14.2 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 50.7 kB

  • Original 63.7 kB
  • After minification 48.9 kB
  • After compression 13.0 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 14.8 kB, which is 23% 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 50.7 kB or 80% of the original size.

Image Optimization

-31%

Potential reduce by 4.3 MB

  • Original 14.2 MB
  • After minification 9.9 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, Sepios needs image optimization as it can save up to 4.3 MB or 31% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-27%

Potential reduce by 334.6 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 886.8 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 334.6 kB or 27% of the original size.

CSS Optimization

-47%

Potential reduce by 90.8 kB

  • Original 193.4 kB
  • After minification 192.1 kB
  • After compression 102.6 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. Sepios.org needs all CSS files to be minified and compressed as it can save up to 90.8 kB or 47% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (19%)

Requests Now

101

After Optimization

82

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sepios. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sepios.org

sepios.org

235 ms

sepios.org

sepios.org

635 ms

bootstrap.min.css

bootstrap.min.css

380 ms

styles.css

styles.css

285 ms

jquery-2.0.3.min.js

jquery-2.0.3.min.js

308 ms

bootstrap.min.js

bootstrap.min.js

314 ms

script.js

script.js

307 ms

css

css

27 ms

analytics.js

analytics.js

160 ms

338 ms

GeCLL2RWV1c

GeCLL2RWV1c

673 ms

yzvLZJsfd2c

yzvLZJsfd2c

631 ms

TUhVg+spin

TUhVg+spin

204 ms

sepios_logo-white-small.png

sepios_logo-white-small.png

98 ms

youtube_button.png

youtube_button.png

234 ms

facebook_find_us.png

facebook_find_us.png

216 ms

bg_video_still.png

bg_video_still.png

810 ms

sepios_logo-white-large.png

sepios_logo-white-large.png

216 ms

eth_logo_kurz_neg.png

eth_logo_kurz_neg.png

214 ms

asl_logo-white-large.png

asl_logo-white-large.png

663 ms

india_crowd.jpg

india_crowd.jpg

662 ms

winner.jpg

winner.jpg

781 ms

bg-sea_transition.png

bg-sea_transition.png

300 ms

bg-sea_mist.png

bg-sea_mist.png

315 ms

ROLLOUT_Team.jpg

ROLLOUT_Team.jpg

780 ms

ROLLOUT_Sponsors.jpg

ROLLOUT_Sponsors.jpg

780 ms

ROLLOUT_Martin.jpg

ROLLOUT_Martin.jpg

853 ms

ROLLOUT_Pool.jpg

ROLLOUT_Pool.jpg

1119 ms

Sepios_in_water2.jpg

Sepios_in_water2.jpg

951 ms

TESTING_SepiosOnStand.png

TESTING_SepiosOnStand.png

1326 ms

TESTING_SpaceMouse.png

TESTING_SpaceMouse.png

806 ms

TESTING_SepiosLaserCamera.png

TESTING_SepiosLaserCamera.png

1120 ms

TESTING_myRIO.png

TESTING_myRIO.png

1120 ms

ASSEMBLING_PressureTest.png

ASSEMBLING_PressureTest.png

1219 ms

ASSEMBLING_BaseUnitLaser.png

ASSEMBLING_BaseUnitLaser.png

1399 ms

ASSEMBLING_BaseUnit.png

ASSEMBLING_BaseUnit.png

1400 ms

ASSEMBLING_Fin.png

ASSEMBLING_Fin.png

1222 ms

ASSEMBLING_BevelGearShaft.png

ASSEMBLING_BevelGearShaft.png

1221 ms

PROTO_LEGO.png

PROTO_LEGO.png

1325 ms

PROTO_ServoTest.png

PROTO_ServoTest.png

1323 ms

PROTO_CADFlatSeal.png

PROTO_CADFlatSeal.png

1323 ms

PROTO_PlasticFinCase.png

PROTO_PlasticFinCase.png

1400 ms

kubo_logo.png

kubo_logo.png

1400 ms

ni_logo.png

ni_logo.png

1401 ms

dphys_logo.png

dphys_logo.png

1411 ms

swaytronic_logo.png

swaytronic_logo.png

1332 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwlxdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwlxdr.ttf

72 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3i94_wlxdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3i94_wlxdr.ttf

77 ms

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7g.ttf

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7g.ttf

96 ms

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZZMkids18E.ttf

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZZMkids18E.ttf

102 ms

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZYokSds18E.ttf

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZYokSds18E.ttf

121 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

1333 ms

3dconnexion_logo.png

3dconnexion_logo.png

1341 ms

qualicut_logo.jpg

qualicut_logo.jpg

1342 ms

Kami_Logo.png

Kami_Logo.png

1311 ms

collect

collect

34 ms

js

js

92 ms

vendor-329e6349f8ce5ed0ffdd24a56c16b24d.css

vendor-329e6349f8ce5ed0ffdd24a56c16b24d.css

35 ms

p3d-78798fa38ac19539eaa942a09b0850b2.css

p3d-78798fa38ac19539eaa942a09b0850b2.css

38 ms

hitec2.jpg

hitec2.jpg

1296 ms

2x.jpg

2x.jpg

1307 ms

abb_logo.png

abb_logo.png

1309 ms

hasler_logo.png

hasler_logo.png

1303 ms

css

css

17 ms

vendor-8e1140b568748c953ae8900d1942cac1.js

vendor-8e1140b568748c953ae8900d1942cac1.js

23 ms

view_in_p3d_text_white_jacket.png

view_in_p3d_text_white_jacket.png

24 ms

matomo.js

matomo.js

17 ms

image-78fd158732.png

image-78fd158732.png

14 ms

TitilliumWeb-Regular-ad03b05f8f9275f653a122b6d9ef0927.ttf

TitilliumWeb-Regular-ad03b05f8f9275f653a122b6d9ef0927.ttf

18 ms

TitilliumWeb-Bold-613987852ab3f0400cabf77450cd94ca.ttf

TitilliumWeb-Bold-613987852ab3f0400cabf77450cd94ca.ttf

17 ms

matomo.php

matomo.php

45 ms

p3d-dc9def9918a31f359b47526b0d696a99.js

p3d-dc9def9918a31f359b47526b0d696a99.js

19 ms

cpp-viewer-wasm-660568caf953bb251f860d338c47c823.js

cpp-viewer-wasm-660568caf953bb251f860d338c47c823.js

6 ms

suter_logo.png

suter_logo.png

1238 ms

alumex_logo.png

alumex_logo.png

1232 ms

www-player.css

www-player.css

13 ms

www-embed-player.js

www-embed-player.js

26 ms

base.js

base.js

45 ms

ad_status.js

ad_status.js

324 ms

s9i9Iyk4Y_s1LD6aqz2X9kjqPppJUVpoTsMZDucYENo.js

s9i9Iyk4Y_s1LD6aqz2X9kjqPppJUVpoTsMZDucYENo.js

317 ms

embed.js

embed.js

230 ms

distrelec_logo.png

distrelec_logo.png

942 ms

AIdro_nomB-XM6arFqw7lUEWgp2yPuPUpfRnnvhwM0gmia2A=s68-c-k-c0x00ffffff-no-rj

AIdro_nomB-XM6arFqw7lUEWgp2yPuPUpfRnnvhwM0gmia2A=s68-c-k-c0x00ffffff-no-rj

456 ms

jki_logo.png

jki_logo.png

838 ms

kundert_logo.png

kundert_logo.png

840 ms

jakob_antrieb_logo.png

jakob_antrieb_logo.png

852 ms

thuemer_teile_logo.png

thuemer_teile_logo.png

854 ms

id

id

70 ms

maagtechnic_logo.png

maagtechnic_logo.png

832 ms

igus_logo.png

igus_logo.png

893 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

43 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

44 ms

utz_logo.jpg

utz_logo.jpg

859 ms

Create

Create

247 ms

Create

Create

252 ms

Create

Create

350 ms

tb_logo.png

tb_logo.png

596 ms

asvz_logo.png

asvz_logo.png

609 ms

puag_logo.png

puag_logo.png

609 ms

bastli_logo_white.png

bastli_logo_white.png

618 ms

TEAM_BikeTrip.jpg

TEAM_BikeTrip.jpg

859 ms

Pascal.jpg

Pascal.jpg

585 ms

GenerateIT

GenerateIT

95 ms

GenerateIT

GenerateIT

88 ms

Fabio.jpg

Fabio.jpg

487 ms

Julian.png

Julian.png

501 ms

Martin.jpg

Martin.jpg

500 ms

Alessandro.jpg

Alessandro.jpg

510 ms

GenerateIT

GenerateIT

21 ms

Antoine.jpg

Antoine.jpg

510 ms

Vincent.jpg

Vincent.jpg

512 ms

Markus.jpg

Markus.jpg

522 ms

Marjolijn.jpg

Marjolijn.jpg

520 ms

Accessibility Review

sepios.org accessibility score

87

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.

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

Best Practices

sepios.org 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

sepios.org SEO score

99

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sepios.org 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 Sepios.org 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

sepios.org

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