Tools & Wizards About Us
supervalue.co.nz screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

supervalue.co.nz

Supermarket Online and Nationwide | Online Grocery | Grocery Delivery

Page Load Speed

5.6 sec in total

First Response

29 ms

Resources Loaded

4.6 sec

Page Rendered

1 sec

supervalue.co.nz screenshot

About Website

Click here to check amazing Supervalue content for New Zealand. Otherwise, check out these important facts you probably never knew about supervalue.co.nz

Your local SuperValue Supermarket is dedicated to providing the highest quality fresh food and the very best customer service. Find your local store or visit our online supermarket for online grocery ...

Visit supervalue.co.nz

Key Findings

We analyzed Supervalue.co.nz page load time and found that the first response time was 29 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

supervalue.co.nz performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value1,750 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.7 s

17/100

10%

Network Requests Diagram

supervalue.co.nz

29 ms

supervalue.co.nz

503 ms

www.supervalue.co.nz

1746 ms

app.css

1405 ms

vendor.0.bundle.js

1202 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 27% of them (13 requests) were addressed to the original Supervalue.co.nz, 65% (31 requests) were made to Supervalue.imgix.net and 2% (1 request) were made to D3f5l8ze0o4j2m.cloudfront.net. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Supervalue.co.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 204.2 kB (33%)

Content Size

621.6 kB

After Optimization

417.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Supervalue.co.nz main page is 621.6 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. 25% of websites need less resources to load. HTML takes 212.2 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 190.2 kB

  • Original 212.2 kB
  • After minification 162.1 kB
  • After compression 22.0 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 50.2 kB, which is 24% 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 190.2 kB or 90% of the original size.

Image Optimization

-5%

Potential reduce by 8.8 kB

  • Original 181.7 kB
  • After minification 173.0 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. Supervalue images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 108 B

  • Original 177.3 kB
  • After minification 177.3 kB
  • After compression 177.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-10%

Potential reduce by 5.2 kB

  • Original 50.3 kB
  • After minification 50.3 kB
  • After compression 45.1 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. Supervalue.co.nz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (53%)

Requests Now

40

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Supervalue. 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

supervalue.co.nz

supervalue.co.nz

29 ms

supervalue.co.nz

supervalue.co.nz

503 ms

www.supervalue.co.nz

www.supervalue.co.nz

1746 ms

app.css

app.css

1405 ms

vendor.0.bundle.js

vendor.0.bundle.js

1202 ms

vendor.1.bundle.js

vendor.1.bundle.js

978 ms

app.js

app.js

1514 ms

k33spt.js

k33spt.js

7 ms

Muscula8.js

Muscula8.js

214 ms

rum-spa.min.js

rum-spa.min.js

339 ms

gtm.js

gtm.js

229 ms

weatherboard.jpg

weatherboard.jpg

289 ms

custom-logo.png

custom-logo.png

542 ms

B-054-SVFC-Powerade-Blackcurrant-Website-Sliders-Desktop.jpg

B-054-SVFC-Powerade-Blackcurrant-Website-Sliders-Desktop.jpg

230 ms

B-055-Fanta-Rasberry-SVFC-Web-Sliders-Dekstop.jpg

B-055-Fanta-Rasberry-SVFC-Web-Sliders-Dekstop.jpg

232 ms

B-092-Hummingbird-Web-Slider-Desktop.jpg

B-092-Hummingbird-Web-Slider-Desktop.jpg

231 ms

Value-Propositions-Money-Thumb.png

Value-Propositions-Money-Thumb.png

234 ms

Value-Propositions-Fruit.png

Value-Propositions-Fruit.png

234 ms

Value-Propositions-Locally-Owned.png

Value-Propositions-Locally-Owned.png

230 ms

Value-Propositions-Community-Cash.png

Value-Propositions-Community-Cash.png

241 ms

Value-Propositions-Recycle-v2.png

Value-Propositions-Recycle-v2.png

232 ms

B-054-SVFC-Powerade-Blackcurrant-HomeGrid-Tile.jpg

B-054-SVFC-Powerade-Blackcurrant-HomeGrid-Tile.jpg

255 ms

B-077-Finish-Vanish-Web-Grid.jpg

B-077-Finish-Vanish-Web-Grid.jpg

252 ms

B-055-Fanta-Rasberry-SVFC-Web-Grid.jpg

B-055-Fanta-Rasberry-SVFC-Web-Grid.jpg

253 ms

B-092-Hummingbird-Whats-On-Web-Grid-Tile_.jpg

B-092-Hummingbird-Whats-On-Web-Grid-Tile_.jpg

252 ms

Spinach-Ricotta-Dumplings.jpg

Spinach-Ricotta-Dumplings.jpg

264 ms

Speedy-tomato-chicken-and-olive-pasta-.jpg

Speedy-tomato-chicken-and-olive-pasta-.jpg

270 ms

Whole-Roast-Butter-Chicken-v2.jpg

Whole-Roast-Butter-Chicken-v2.jpg

278 ms

Pulled-Pork-With-Sweet-Capsicum-Black-Beans.jpg

Pulled-Pork-With-Sweet-Capsicum-Black-Beans.jpg

331 ms

Classic-Beef-Stew.jpg

Classic-Beef-Stew.jpg

281 ms

Butter-Eggplant-Curry.jpg

Butter-Eggplant-Curry.jpg

476 ms

Slow-Cooker-Pulled-Pork-Rolls-v2.jpg

Slow-Cooker-Pulled-Pork-Rolls-v2.jpg

288 ms

Crispy-Chicken-Thighs-With-Lemon-Herbs.jpg

Crispy-Chicken-Thighs-With-Lemon-Herbs.jpg

304 ms

Pulled-Pork-Tacos-With-Smoky-Pineapple-Salsa.jpg

Pulled-Pork-Tacos-With-Smoky-Pineapple-Salsa.jpg

305 ms

LambCurry.jpg

LambCurry.jpg

300 ms

Slow-Cooked-Lamb-with-Winter-Vegetables.jpg

Slow-Cooked-Lamb-with-Winter-Vegetables.jpg

312 ms

Slow-Cooked-Pork-Steak.jpg

Slow-Cooked-Pork-Steak.jpg

331 ms

Lamb-Shanks.jpg

Lamb-Shanks.jpg

332 ms

BeefWinterCasserole.jpg

BeefWinterCasserole.jpg

332 ms

WDL-5425-SV-Website-Promotion-Tile-Shop-Online-Double.jpg

WDL-5425-SV-Website-Promotion-Tile-Shop-Online-Double.jpg

465 ms

WDL-5425-SV-Website-Promotion-Tile-Facebook-Single-.jpg

WDL-5425-SV-Website-Promotion-Tile-Facebook-Single-.jpg

469 ms

WDL-5425-SV-Website-Promotion-Tile-Instagram-Single.jpg

WDL-5425-SV-Website-Promotion-Tile-Instagram-Single.jpg

480 ms

weatherboard.jpg

weatherboard.jpg

498 ms

subset-ApexNew-Bold.woff

subset-ApexNew-Bold.woff

749 ms

subset-ApexNew-Medium.woff

subset-ApexNew-Medium.woff

714 ms

subset-Suti-Regular.woff

subset-Suti-Regular.woff

627 ms

watermark.svg

watermark.svg

588 ms

weatherboard.jpg

weatherboard.jpg

473 ms

Accessibility Review

supervalue.co.nz accessibility score

86

Accessibility Issues

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

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

Best Practices

supervalue.co.nz best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

supervalue.co.nz SEO score

81

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

supervalue.co.nz

Open Graph data is detected on the main page of Supervalue. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: