Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

weather.niwa.co.nz

NIWA Weather

Page Load Speed

5.9 sec in total

First Response

2.1 sec

Resources Loaded

3.6 sec

Page Rendered

126 ms

weather.niwa.co.nz screenshot

About Website

Welcome to weather.niwa.co.nz homepage info - get ready to check Weather NIWA best content for New Zealand right away, or after learning these important things about weather.niwa.co.nz

NIWA Weather forecasts and Rainfall maps for New Zealand towns and cities.

Visit weather.niwa.co.nz

Key Findings

We analyzed Weather.niwa.co.nz page load time and found that the first response time was 2.1 sec and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

weather.niwa.co.nz performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value16.9 s

0/100

10%

TBT (Total Blocking Time)

Value1,870 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.192

64/100

15%

TTI (Time to Interactive)

Value16.8 s

5/100

10%

Network Requests Diagram

weather.niwa.co.nz

2143 ms

ea1a4df.css

600 ms

80c09d8.css

399 ms

af7f4d3.js

421 ms

eeaae43.js

202 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 80% of them (12 requests) were addressed to the original Weather.niwa.co.nz, 13% (2 requests) were made to Google-analytics.com and 7% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Weather.niwa.co.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 553.5 kB (70%)

Content Size

789.6 kB

After Optimization

236.1 kB

In fact, the total size of Weather.niwa.co.nz main page is 789.6 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 585.2 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 404.7 kB

  • Original 585.2 kB
  • After minification 571.1 kB
  • After compression 180.5 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 404.7 kB or 69% of the original size.

Image Optimization

-46%

Potential reduce by 7.9 kB

  • Original 17.3 kB
  • After minification 9.4 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, Weather NIWA needs image optimization as it can save up to 7.9 kB or 46% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-83%

Potential reduce by 140.9 kB

  • Original 169.9 kB
  • After minification 167.1 kB
  • After compression 29.1 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. Weather.niwa.co.nz needs all CSS files to be minified and compressed as it can save up to 140.9 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

10

After Optimization

10

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Weather NIWA. According to our analytics all requests are already optimized.

Accessibility Review

weather.niwa.co.nz accessibility score

78

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

weather.niwa.co.nz best practices score

92

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

Missing source maps for large first-party JavaScript

SEO Factors

weather.niwa.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

robots.txt is not valid

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Weather.niwa.co.nz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Weather.niwa.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

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