2.8 sec in total
609 ms
2 sec
212 ms
Click here to check amazing Sierra Minera content. Otherwise, check out these important facts you probably never knew about sierraminera.com
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Visit sierraminera.comWe analyzed Sierraminera.com page load time and found that the first response time was 609 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
sierraminera.com performance score
name
value
score
weighting
Value2.6 s
64/100
10%
Value17.7 s
0/100
25%
Value12.2 s
3/100
10%
Value2,840 ms
3/100
30%
Value9.039
0/100
15%
Value27.6 s
0/100
10%
609 ms
315 ms
265 ms
191 ms
221 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 53% of them (18 requests) were addressed to the original Sierraminera.com, 24% (8 requests) were made to Apis.google.com and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (609 ms) belongs to the original domain Sierraminera.com.
Page size can be reduced by 240.1 kB (54%)
445.9 kB
205.8 kB
In fact, the total size of Sierraminera.com main page is 445.9 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. 45% of websites need less resources to load. Javascripts take 251.6 kB which makes up the majority of the site volume.
Potential reduce by 14.6 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 5.1 kB, which is 28% 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 14.6 kB or 78% of the original size.
Potential reduce by 8.5 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. Sierra Minera images are well optimized though.
Potential reduce by 171.3 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 171.3 kB or 68% of the original size.
Potential reduce by 45.8 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. Sierraminera.com needs all CSS files to be minified and compressed as it can save up to 45.8 kB or 84% of the original size.
Number of requests can be reduced by 21 (64%)
33
12
The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sierra Minera. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
inicio
609 ms
jquery.js
315 ms
main.css
265 ms
responsive.css
191 ms
slider.js
221 ms
slider.css
191 ms
prettyphoto.js
293 ms
prettyphoto.css
295 ms
engine.js
282 ms
mobile_w.css
357 ms
w_library.js
359 ms
widget.js
463 ms
desktop.js
389 ms
desktop.css
410 ms
logo_top.png
170 ms
aqua-home1.jpg
450 ms
logo_gris.png
108 ms
ga.js
17 ms
point.png
99 ms
all.js
166 ms
__utm.gif
26 ms
plusone.js
66 ms
cb=gapi.loaded_0
9 ms
cb=gapi.loaded_1
30 ms
fastbutton
130 ms
postmessageRelay
58 ms
3193398744-postmessagerelay.js
44 ms
rpc:shindig_random.js
42 ms
254 ms
cb=gapi.loaded_0
35 ms
cb=gapi.loaded_1
27 ms
xd_arbiter.php
129 ms
xd_arbiter.php
256 ms
cb=gapi.loaded_0
26 ms
sierraminera.com accessibility score
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
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
sierraminera.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
sierraminera.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Document uses legible font sizes
Tap targets are not sized appropriately
ES
ES
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sierraminera.com 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 Sierraminera.com 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.
sierraminera.com
Open Graph description is not detected on the main page of Sierra Minera. 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: