Access vistaoptica.es. VistaOptica ᐅ Óptica Online y Audiología

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value12.3 s

0/100

25%

SI (Speed Index)

Value19.4 s

0/100

10%

TBT (Total Blocking Time)

Value2,540 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.081

94/100

15%

TTI (Time to Interactive)

Value17.2 s

4/100

10%

vistaoptica.es

407 ms

340 ms

css

42 ms

theme-fc354092.css

1413 ms

head-12cb6c91.js

410 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 82% of them (61 requests) were addressed to the original Vistaoptica.es, 7% (5 requests) were made to Googletagmanager.com and 7% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Vistaoptica.es.

Content Size

2.5 MB

After Optimization

1.1 MB

In fact, the total size of Vistaoptica.es main page is 2.5 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. 50% of websites need less resources to load. Javascripts take 973.3 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 98.6 kB

Original 118.7 kB
After minification 93.0 kB
After compression 20.1 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 25.7 kB, which is 22% 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 98.6 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 3.7 kB

Original 683.4 kB
After minification 679.7 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. Vista Optica images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 694.9 kB

Original 973.3 kB
After minification 973.3 kB
After compression 278.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 694.9 kB or 71% of the original size.

CSS Optimization

-80%

Potential reduce by 543.5 kB

Original 681.8 kB
After minification 680.6 kB
After compression 138.4 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. Vistaoptica.es needs all CSS files to be minified and compressed as it can save up to 543.5 kB or 80% of the original size.

Requests Now

After Optimization

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vista Optica. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

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

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

ES
Language Claimed

ES
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vistaoptica.es can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and it matches the claimed language. Our system also found out that Vistaoptica.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

vistaoptica.es

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

Report Summary

Performance

Accessibility

Best Practices

SEO

VistaOptica ᐅ Óptica Online y Audiología

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

vistaoptica.es

css

theme-fc354092.css

head-12cb6c91.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

vistaoptica.es

css

theme-fc354092.css

head-12cb6c91.js

js

js

js

js

js

bottom-fdd85c91.js

gtm.js

fbevents.js

loading.gif

conf.png

icono-localizacion-top.svg

logo.svg

624fe486f0bcb2021-02-17_cita_cast_2.jpg

61f12797ddfcebanner_franquicias_700x400_es.jpg

5dd25a262ba92oferta_149_cast_700x400.jpg

602d1207d41ec2021-02-17_cita_cast.jpg

61f12797de441banner_franquicias_700x200_es.jpg

5dd25a262c057promocion_700x200_progresivos_cast.jpg

Sol.jpg

Graduados.jpg

Audifonos.jpg

Lentillas.jpg

gafas.svg

citas.svg

garantia.svg

financiacion.svg

ray-ban-wayfarer-2140.jpg

ray-ban-wayfarer-2140.jpg

chance-urban-clara.jpg

chance-urban-clara.jpg

optimoda-visor.jpg

optimoda-visor.jpg

ray-ban-square-1971.jpg

ray-ban-square-1971.jpg

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sprite.png

icono-localizacion.svg