4.3 sec in total
616 ms
3.5 sec
120 ms
Click here to check amazing Spero content. Otherwise, check out these important facts you probably never knew about spero.co.za
The goal of Spero Group is to provide innovative solutions through the installation, management and maintenance of safety systems that enables our clients to focus on their core business knowing that ...
Visit spero.co.zaWe analyzed Spero.co.za page load time and found that the first response time was 616 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster. This domain responded with an error, which can significantly jeopardize Spero.co.za rating and web reputation
spero.co.za performance score
name
value
score
weighting
Value5.4 s
6/100
10%
Value10.9 s
0/100
25%
Value15.9 s
0/100
10%
Value200 ms
90/100
30%
Value1.012
2/100
15%
Value8.5 s
38/100
10%
616 ms
574 ms
505 ms
516 ms
516 ms
Our browser made a total of 42 requests to load all elements on the main page. We found that 95% of them (40 requests) were addressed to the original Spero.co.za, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Spero.co.za.
Page size can be reduced by 96.4 kB (41%)
235.2 kB
138.8 kB
In fact, the total size of Spero.co.za main page is 235.2 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. 15% of websites need less resources to load. Images take 145.9 kB which makes up the majority of the site volume.
Potential reduce by 21.6 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 7.8 kB, which is 29% 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 21.6 kB or 79% of the original size.
Potential reduce by 39.5 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. Obviously, Spero needs image optimization as it can save up to 39.5 kB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 26.4 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 26.4 kB or 54% of the original size.
Potential reduce by 8.9 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. Spero.co.za needs all CSS files to be minified and compressed as it can save up to 8.9 kB or 70% of the original size.
Number of requests can be reduced by 25 (64%)
39
14
The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Spero. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
spero.co.za
616 ms
Home.aspx
574 ms
default.css
505 ms
sperosens_home.css
516 ms
sperosens_products_general.css
516 ms
sperosens_products_sub1.css
517 ms
sperosens_products_sub2.css
517 ms
sperosens_products.css
518 ms
dropdown.css
756 ms
dropdown_au.css
772 ms
AC_RunActiveContent.js
775 ms
WebResource.axd
1032 ms
WebResource.axd
774 ms
ga.js
12 ms
sperosens_logo.gif
271 ms
button_search.jpg
555 ms
menu_home.gif
271 ms
menu_products.gif
272 ms
menu_solutions.gif
272 ms
menu_engineering.gif
510 ms
menu_services.gif
509 ms
menu_contact.gif
518 ms
header_about_us.gif
517 ms
readmore.png
519 ms
i_spero%20sentry.jpg
762 ms
readmore.png
766 ms
i_sperosens_speroblaze_caff_system.jpg
1031 ms
arrow1.gif
773 ms
A4_Advert_Jpeg.jpg
1547 ms
header_news.gif
808 ms
i_generic_01.jpg
1016 ms
i_generic_02.jpg
1021 ms
i_generic_03.jpg
1028 ms
logos01.jpg
1324 ms
__utm.gif
17 ms
flashbar_back_home.jpg
1014 ms
menu_home_over.gif
256 ms
menu_products_over.gif
260 ms
menu_solutions_over.gif
261 ms
menu_services_over.gif
261 ms
menu_support_over.gif
261 ms
menu_contact_over.gif
261 ms
spero.co.za accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
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
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
Links do not have a discernible name
spero.co.za 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
spero.co.za SEO score
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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Spero.co.za can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Spero.co.za 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.
spero.co.za
Open Graph description is not detected on the main page of Spero. 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: