1.8 sec in total
143 ms
1.5 sec
251 ms
Welcome to alcoa.com homepage info - get ready to check Alcoa best content for Australia right away, or after learning these important things about alcoa.com
Discover how Alcoa is reinventing the aluminum industry through sustainable products and processes, environmental stewardship, and equitable career opportunities.
Visit alcoa.comWe analyzed Alcoa.com page load time and found that the first response time was 143 ms and then it took 1.7 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.
alcoa.com performance score
name
value
score
weighting
Value7.8 s
0/100
10%
Value10.2 s
0/100
25%
Value7.8 s
24/100
10%
Value320 ms
76/100
30%
Value0.021
100/100
15%
Value12.1 s
16/100
10%
143 ms
370 ms
84 ms
123 ms
264 ms
Our browser made a total of 66 requests to load all elements on the main page. We found that 80% of them (53 requests) were addressed to the original Alcoa.com, 5% (3 requests) were made to Youtube.com and 5% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (541 ms) belongs to the original domain Alcoa.com.
Page size can be reduced by 1.1 MB (38%)
2.8 MB
1.7 MB
In fact, the total size of Alcoa.com main page is 2.8 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. 55% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 72.5 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 72.5 kB or 77% of the original size.
Potential reduce by 89.7 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. Alcoa images are well optimized though.
Potential reduce by 650.8 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 650.8 kB or 67% of the original size.
Potential reduce by 259.5 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. Alcoa.com needs all CSS files to be minified and compressed as it can save up to 259.5 kB or 84% of the original size.
Number of requests can be reduced by 24 (38%)
64
40
The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alcoa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
alcoa.com
143 ms
home.asp
370 ms
nav_main.js
84 ms
styles.css
123 ms
jquery-1.7.1.min.js
264 ms
jquery-ui-1.8.18.custom.min.js
155 ms
jquery.css
130 ms
home.css
225 ms
jquery.banner_slider.js
139 ms
in.js
14 ms
ga_extras.js
197 ms
addthis_widget.js
8 ms
top_alcoa_logo_wide.gif
44 ms
spacer.gif
148 ms
blue_top_nav_arrow.gif
155 ms
print_blue.gif
138 ms
bckgrn_blue.gif
131 ms
hero-fourth-boeing-contract.jpg
132 ms
hero-ge-contract.jpg
226 ms
hero-boeing-contract.jpg
158 ms
hero-davenport-vr-tour.jpg
179 ms
hero-id2015.jpg
293 ms
hero-laporte-opens.jpg
541 ms
hero-f35.jpg
531 ms
hero-airbus.jpg
291 ms
hero-two-strong-companies.jpg
278 ms
hero-tn-auto-expansion.jpg
290 ms
box_bullet.gif
311 ms
left-arrow.png
365 ms
right-arrow.png
362 ms
spotlight-value-add.jpg
364 ms
spotlight-upstream.jpg
364 ms
story-1.jpg
415 ms
story-2.jpg
417 ms
story-3.jpg
417 ms
auto-market.jpg
501 ms
aerospace-market.jpg
429 ms
building-construction-market.jpg
418 ms
packaging-market.jpg
419 ms
consumer-electronics-market.jpg
466 ms
commercial-transportation-market.jpg
467 ms
oil-gas-market.jpg
467 ms
defense-market.jpg
499 ms
alumina-market.jpg
499 ms
aluminum-market.jpg
517 ms
aa-employees.jpg
511 ms
facebook-icon.jpg
517 ms
secureAnonymousFramework
117 ms
twitter-icon.jpg
514 ms
iframe_api
110 ms
linkedin-icon.jpg
522 ms
analytics.js
110 ms
youtube-icon.jpg
440 ms
rss-icon.jpg
428 ms
mail-icon.jpg
427 ms
ui-bg_flat_75_ffffff_40x100.png
436 ms
bckgrn_3dot.gif
485 ms
www-widgetapi.js
23 ms
collect
12 ms
nK5Ato_irdw
105 ms
zAPrWNAaggQ
158 ms
www-embed-player-vflZsBgOl.css
68 ms
www-embed-player.js
93 ms
6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js
37 ms
ad_status.js
32 ms
print.css
75 ms
alcoa.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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 IDs are not unique
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
Image elements do not have [alt] attributes
Links do not have a discernible name
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.
alcoa.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
alcoa.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
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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alcoa.com 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 Alcoa.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.
alcoa.com
Open Graph description is not detected on the main page of Alcoa. 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: