Tools & Wizards About Us
ison21.es screenshot

Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

ison21.es

Ison 21 - Ingeniería Sostenible

Page Load Speed

4.3 sec in total

First Response

857 ms

Resources Loaded

2.7 sec

Page Rendered

689 ms

ison21.es screenshot

About Website

Click here to check amazing Ison 21 content for Spain. Otherwise, check out these important facts you probably never knew about ison21.es

Energías renovables, técnicas medioambientales, fabricación de maquinaria y equipos industriales para tratamiento de residuos (RSU), y para los procesos de compostaje y vermicompostaje. Fabricación de...

Visit ison21.es

Key Findings

We analyzed Ison21.es page load time and found that the first response time was 857 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

ison21.es performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

28/100

25%

SI (Speed Index)

Value2.8 s

95/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

126747377348591

857 ms

s093_TLfvz3.css

177 ms

pERLJfhzcxv.css

220 ms

410ucuAGgaJ.css

261 ms

L-nP2O5k6Cy.css

333 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Ison21.es, 21% (21 requests) were made to Scontent.xx.fbcdn.net and 5% (5 requests) were made to External.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (857 ms) relates to the external source Facebook.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 264.0 kB (46%)

Content Size

574.8 kB

After Optimization

310.8 kB

  • HTML
  • Images

In fact, the total size of Ison21.es main page is 574.8 kB. 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. HTML takes 323.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 259.1 kB

  • Original 323.9 kB
  • After minification 323.4 kB
  • After compression 64.8 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. 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 259.1 kB or 80% of the original size.

Image Optimization

-2%

Potential reduce by 5.0 kB

  • Original 251.0 kB
  • After minification 246.0 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. Ison 21 images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 56 (57%)

Requests Now

98

After Optimization

42

  • Images
  • JavaScript
  • CSS

The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ison 21. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

126747377348591

126747377348591

857 ms

s093_TLfvz3.css

s093_TLfvz3.css

177 ms

pERLJfhzcxv.css

pERLJfhzcxv.css

220 ms

410ucuAGgaJ.css

410ucuAGgaJ.css

261 ms

L-nP2O5k6Cy.css

L-nP2O5k6Cy.css

333 ms

5VyqWwEExHq.css

5VyqWwEExHq.css

296 ms

8_9aE_Ve0UN.css

8_9aE_Ve0UN.css

342 ms

sFTVm4Wm5AN.css

sFTVm4Wm5AN.css

305 ms

6aeJcfXT9rM.css

6aeJcfXT9rM.css

305 ms

L4nXLs-b7HC.css

L4nXLs-b7HC.css

307 ms

EoarYgA68t4.css

EoarYgA68t4.css

370 ms

v_An6I20hBD.css

v_An6I20hBD.css

346 ms

WFN1vaN-1UJ.css

WFN1vaN-1UJ.css

347 ms

RhKYB95vxw7.css

RhKYB95vxw7.css

345 ms

KBVYWSeiZib.css

KBVYWSeiZib.css

377 ms

csYOrJqCGrF.css

csYOrJqCGrF.css

379 ms

19A3ofCNcSq.css

19A3ofCNcSq.css

380 ms

dAhyk4_vXRy.css

dAhyk4_vXRy.css

380 ms

Ek6lpayKeeB.css

Ek6lpayKeeB.css

421 ms

hEitKOs4yx9.css

hEitKOs4yx9.css

405 ms

SkM-vX5sWne.css

SkM-vX5sWne.css

407 ms

dQi3_PWM1aR.css

dQi3_PWM1aR.css

410 ms

FAHeNGXgPup.js

FAHeNGXgPup.js

449 ms

event

event

141 ms

529808_398284773528182_103207108_n.jpg

529808_398284773528182_103207108_n.jpg

266 ms

static_map.php

static_map.php

246 ms

safe_image.php

safe_image.php

374 ms

safe_image.php

safe_image.php

624 ms

safe_image.php

safe_image.php

386 ms

safe_image.php

safe_image.php

388 ms

30828_126751067348222_6450266_n.jpg

30828_126751067348222_6450266_n.jpg

273 ms

12376346_1082042011819118_7831747695713001707_n.jpg

12376346_1082042011819118_7831747695713001707_n.jpg

285 ms

11041203_1060850727271580_4164022159545565413_n.jpg

11041203_1060850727271580_4164022159545565413_n.jpg

281 ms

12108261_1039872652702721_2539279534449472401_n.jpg

12108261_1039872652702721_2539279534449472401_n.jpg

284 ms

12079089_1039872506036069_5671718995885129582_n.jpg

12079089_1039872506036069_5671718995885129582_n.jpg

284 ms

12118627_1039872172702769_5012894224842047757_n.jpg

12118627_1039872172702769_5012894224842047757_n.jpg

296 ms

12088310_1039872006036119_61506682713174184_n.jpg

12088310_1039872006036119_61506682713174184_n.jpg

378 ms

12141774_1039871936036126_4430460323792615047_n.jpg

12141774_1039871936036126_4430460323792615047_n.jpg

371 ms

11753670_996729900350330_8573728319919079685_n.jpg

11753670_996729900350330_8573728319919079685_n.jpg

377 ms

11295712_959286627427991_6710889556769025575_n.jpg

11295712_959286627427991_6710889556769025575_n.jpg

369 ms

12038289_124354341252241_4328499596940967507_n.jpg

12038289_124354341252241_4328499596940967507_n.jpg

377 ms

1926791_10151996717349091_517335154_n.jpg

1926791_10151996717349091_517335154_n.jpg

379 ms

537000_108759799308599_1300119078_n.jpg

537000_108759799308599_1300119078_n.jpg

620 ms

10354686_10150004552801856_220367501106153455_n.jpg

10354686_10150004552801856_220367501106153455_n.jpg

387 ms

197399_108756275872026_2220835_n.jpg

197399_108756275872026_2220835_n.jpg

616 ms

1940014_767241913340691_8921063702946243460_n.png

1940014_767241913340691_8921063702946243460_n.png

621 ms

12743526_749922951775754_5344008130707673787_n.jpg

12743526_749922951775754_5344008130707673787_n.jpg

629 ms

427824_352556514803821_732865462_n.jpg

427824_352556514803821_732865462_n.jpg

617 ms

30828_126751067348222_6450266_n.jpg

30828_126751067348222_6450266_n.jpg

622 ms

ZVyMWStefv_.png

ZVyMWStefv_.png

77 ms

K00K-UgnsKu.png

K00K-UgnsKu.png

78 ms

wL6VQj7Ab77.png

wL6VQj7Ab77.png

78 ms

-PAXP-deijE.gif

-PAXP-deijE.gif

78 ms

ZrLxvLoiUzX.png

ZrLxvLoiUzX.png

77 ms

GsNJNwuI-UM.gif

GsNJNwuI-UM.gif

78 ms

spacer.gif

spacer.gif

30 ms

UHNY_g5mVbr.js

UHNY_g5mVbr.js

43 ms

FJmpeSpHpjS.js

FJmpeSpHpjS.js

118 ms

hbybLXHu6w1.js

hbybLXHu6w1.js

45 ms

Oagsvfb4VWi.js

Oagsvfb4VWi.js

104 ms

1bNoFZUdlYZ.js

1bNoFZUdlYZ.js

56 ms

_UYztdBNTjs.js

_UYztdBNTjs.js

59 ms

1FCa-btixu2.js

1FCa-btixu2.js

146 ms

7BE0CZr3HTs.js

7BE0CZr3HTs.js

82 ms

IjqSyiwKeaX.js

IjqSyiwKeaX.js

109 ms

RTHSWgdzleR.js

RTHSWgdzleR.js

109 ms

OZFAYTv-ZUg.js

OZFAYTv-ZUg.js

146 ms

m-2AbGY1fWh.js

m-2AbGY1fWh.js

310 ms

VfAud2trIQQ.js

VfAud2trIQQ.js

203 ms

kvx5eeRG4FE.js

kvx5eeRG4FE.js

250 ms

Nn19HjwCsOL.js

Nn19HjwCsOL.js

163 ms

pQrUxxo5oQp.js

pQrUxxo5oQp.js

199 ms

H3EKDTObx05.js

H3EKDTObx05.js

166 ms

J0ZuTxeV0vD.js

J0ZuTxeV0vD.js

210 ms

bh5z0Gfv2P_.js

bh5z0Gfv2P_.js

210 ms

njEKf1WUXml.js

njEKf1WUXml.js

248 ms

kGXyTJNoi6f.js

kGXyTJNoi6f.js

297 ms

yXuA_dMgOm6.js

yXuA_dMgOm6.js

304 ms

1QuX41zDRrx.js

1QuX41zDRrx.js

296 ms

yMCR4PoU6B-.js

yMCR4PoU6B-.js

317 ms

7uWMMev-gdj.js

7uWMMev-gdj.js

542 ms

yBzWdmXwoNV.js

yBzWdmXwoNV.js

316 ms

Wcs1PDXzIEa.js

Wcs1PDXzIEa.js

543 ms

c05laeT1OPx.js

c05laeT1OPx.js

542 ms

-sVccfRXDIY.js

-sVccfRXDIY.js

544 ms

UiJCRDQUmbL.js

UiJCRDQUmbL.js

549 ms

851556_583931374963520_1562685175_n.gif

851556_583931374963520_1562685175_n.gif

549 ms

LXQaqfwANV7.png

LXQaqfwANV7.png

548 ms

geAvKyblz0A.png

geAvKyblz0A.png

548 ms

ZYpT1aFajd7.png

ZYpT1aFajd7.png

545 ms

l5aPruN9xMM.png

l5aPruN9xMM.png

546 ms

771IZlQU7KP.png

771IZlQU7KP.png

548 ms

ZPCmDKlM9R2.js

ZPCmDKlM9R2.js

74 ms

F1Xohf2RB95.png

F1Xohf2RB95.png

224 ms

I6-MnjEovm5.js

I6-MnjEovm5.js

115 ms

Dppan5o6UJu.js

Dppan5o6UJu.js

112 ms

8v2_hdH4Nfm.js

8v2_hdH4Nfm.js

114 ms

-Tr757ZEtMP.js

-Tr757ZEtMP.js

134 ms

A0qdgknEnD5.js

A0qdgknEnD5.js

114 ms

Accessibility Review

ison21.es accessibility score

78

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

ison21.es best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

ison21.es SEO score

93

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

Links do not have descriptive text

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

    ES

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ison21.es can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and it does not match the claimed English language. Our system also found out that Ison21.es 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

ison21.es

Open Graph description is not detected on the main page of Ison 21. 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: