Tools & Wizards About Us
serina.es screenshot

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

serina.es

SERINA - SERVICIOS DE INGENIERIA Y ARQUITECTURA S.L

Page Load Speed

3.3 sec in total

First Response

309 ms

Resources Loaded

2.8 sec

Page Rendered

225 ms

serina.es screenshot

About Website

Welcome to serina.es homepage info - get ready to check SERINA best content for India right away, or after learning these important things about serina.es

SERINA SERVICIOS DE INGENIERIA Y ARQUITECTURA S.L. / SERINA es una empresa de ingeniería de sistemas especializada en el diseño, implantación , operación y mantenimiento de sistemas de tecnología de l...

Visit serina.es

Key Findings

We analyzed Serina.es page load time and found that the first response time was 309 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

serina.es performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

38/100

25%

SI (Speed Index)

Value4.4 s

73/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.043

99/100

15%

TTI (Time to Interactive)

Value4.4 s

83/100

10%

Network Requests Diagram

serina.es

309 ms

index.htm

500 ms

portada.cgi

425 ms

bootstrap.min.css

43 ms

jquery.min.js

26 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 78% of them (25 requests) were addressed to the original Serina.es, 16% (5 requests) were made to Maxcdn.bootstrapcdn.com and 3% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Serina.es.

Page Optimization Overview & Recommendations

Page size can be reduced by 169.7 kB (4%)

Content Size

3.8 MB

After Optimization

3.6 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Serina.es main page is 3.8 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. 25% of websites need less resources to load. Images take 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-49%

Potential reduce by 702 B

  • Original 1.4 kB
  • After minification 1.4 kB
  • After compression 717 B

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 702 B or 49% of the original size.

Image Optimization

-4%

Potential reduce by 159.8 kB

  • Original 3.7 MB
  • After minification 3.6 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. SERINA images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 9.2 kB

  • Original 42.3 kB
  • After minification 39.8 kB
  • After compression 33.1 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 9.2 kB or 22% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (14%)

Requests Now

29

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SERINA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

serina.es

serina.es

309 ms

index.htm

index.htm

500 ms

portada.cgi

portada.cgi

425 ms

bootstrap.min.css

bootstrap.min.css

43 ms

jquery.min.js

jquery.min.js

26 ms

popper.min.js

popper.min.js

44 ms

bootstrap.min.js

bootstrap.min.js

17 ms

bootstrap.min.css

bootstrap.min.css

43 ms

bootstrap.min.js

bootstrap.min.js

41 ms

lw_menu.js

lw_menu.js

227 ms

bootstrap-4.3.1.css

bootstrap-4.3.1.css

318 ms

coreG.jpg

coreG.jpg

492 ms

fbico.png

fbico.png

301 ms

equis.jpg

equis.jpg

404 ms

img1.jpg

img1.jpg

728 ms

img2.jpg

img2.jpg

802 ms

img3.jpg

img3.jpg

785 ms

img4.jpg

img4.jpg

707 ms

img5.jpg

img5.jpg

905 ms

img6.jpg

img6.jpg

885 ms

img_portada_noticia.gif

img_portada_noticia.gif

806 ms

25SERINA2.jpg

25SERINA2.jpg

838 ms

separacion2.jpg

separacion2.jpg

883 ms

colaboracion2.jpg

colaboracion2.jpg

1564 ms

1.png

1.png

913 ms

2.png

2.png

956 ms

3.png

3.png

993 ms

4.png

4.png

995 ms

5.png

5.png

1016 ms

6.png

6.png

1023 ms

7.png

7.png

1072 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

53 ms

Accessibility Review

serina.es accessibility score

100

Accessibility Issues

Best Practices

serina.es 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

serina.es SEO score

100

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

Language and Encoding

  • Language Detected

    ES

  • Language Claimed

    ES

  • Encoding

    ISO-8859-1

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

serina.es

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