Tools & Wizards About Us
altersol.es screenshot

Report Summary

  • 74

    Performance

    Renders faster than
    84% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

altersol.es

Instalación y Mantenimiento de placas y paneles solares en Madrid

Page Load Speed

2.2 sec in total

First Response

462 ms

Resources Loaded

1.3 sec

Page Rendered

458 ms

altersol.es screenshot

About Website

Welcome to altersol.es homepage info - get ready to check Altersol best content right away, or after learning these important things about altersol.es

Ingeniería solar. Expertos en Instalación y Mantenimiento de placas fotovoltaicas y paneles solares en Madrid.

Visit altersol.es

Key Findings

We analyzed Altersol.es page load time and found that the first response time was 462 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

altersol.es performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value10.5 s

0/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

altersol.es

462 ms

gtm.js

95 ms

webStyle.css

493 ms

main.js

486 ms

analytics.js

80 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 78% of them (21 requests) were addressed to the original Altersol.es, 7% (2 requests) were made to Googletagmanager.com and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (493 ms) belongs to the original domain Altersol.es.

Page Optimization Overview & Recommendations

Page size can be reduced by 13.7 kB (36%)

Content Size

38.0 kB

After Optimization

24.3 kB

  • HTML
  • JavaScript

In fact, the total size of Altersol.es main page is 38.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 20.0 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 13.6 kB

  • Original 18.0 kB
  • After minification 16.3 kB
  • After compression 4.4 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 13.6 kB or 76% of the original size.

JavaScript Optimization

-0%

Potential reduce by 63 B

  • Original 20.0 kB
  • After minification 20.0 kB
  • After compression 20.0 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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

  • AJAX
  • Images
  • JavaScript

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Altersol. According to our analytics all requests are already optimized.

Network Requests Diagram

altersol.es

altersol.es

462 ms

gtm.js

gtm.js

95 ms

webStyle.css

webStyle.css

493 ms

main.js

main.js

486 ms

analytics.js

analytics.js

80 ms

js

js

58 ms

collect

collect

217 ms

logoAltersol.png

logoAltersol.png

365 ms

altersol_climatizacion.webp

altersol_climatizacion.webp

365 ms

altersol_ftv_autoconsumo.jpg

altersol_ftv_autoconsumo.jpg

365 ms

altersol_Equipo.jpg

altersol_Equipo.jpg

364 ms

altersol_works.jpg

altersol_works.jpg

364 ms

altersol_aerotermia_vaillant.jpg

altersol_aerotermia_vaillant.jpg

363 ms

altersol_autoconsumo_fotovoltaico.jpg

altersol_autoconsumo_fotovoltaico.jpg

363 ms

altersol_instalacion_industrial_energia_solar.jpg

altersol_instalacion_industrial_energia_solar.jpg

364 ms

logo_altersol.webp

logo_altersol.webp

364 ms

endef.webp

endef.webp

363 ms

kostal.webp

kostal.webp

363 ms

Logo%20atersa.webp

Logo%20atersa.webp

363 ms

Logo_Sunfer_2019.webp

Logo_Sunfer_2019.webp

362 ms

Logo_Vaillant.webp

Logo_Vaillant.webp

363 ms

Logo-Fronius-1820x830.webp

Logo-Fronius-1820x830.webp

363 ms

logoSteca.webp

logoSteca.webp

362 ms

logotipo_fondo%20termicol.webp

logotipo_fondo%20termicol.webp

362 ms

AF-LOGOTIPO-TURBOFANS-IDENTIDAD-21.webp

AF-LOGOTIPO-TURBOFANS-IDENTIDAD-21.webp

362 ms

collect

collect

43 ms

ga-audiences

ga-audiences

41 ms

Accessibility Review

altersol.es accessibility score

64

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

altersol.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

High

Browser errors were logged to the console

SEO Factors

altersol.es SEO score

67

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    ES

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Altersol.es can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Spanish. Our system also found out that Altersol.es main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

altersol.es

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