Tools & Wizards About Us
northernairnj.com screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

northernairnj.com

Northern Air Heating and Cooling Specialists

Page Load Speed

1.2 sec in total

First Response

100 ms

Resources Loaded

708 ms

Page Rendered

387 ms

northernairnj.com screenshot

About Website

Click here to check amazing Northern Air Nj content. Otherwise, check out these important facts you probably never knew about northernairnj.com

Since 1985 Northern Air has continued to deliver outstanding, licensed, HVAC service and installation to Camden, Burlington and Atlantic counties as well as the Center City area of Philadelphia. We sp...

Visit northernairnj.com

Key Findings

We analyzed Northernairnj.com page load time and found that the first response time was 100 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

northernairnj.com performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

76/100

10%

LCP (Largest Contentful Paint)

Value25.1 s

0/100

25%

SI (Speed Index)

Value2.7 s

96/100

10%

TBT (Total Blocking Time)

Value410 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.401

25/100

15%

TTI (Time to Interactive)

Value5.9 s

66/100

10%

Network Requests Diagram

northernairnj.com

100 ms

css

16 ms

css

28 ms

style.css

32 ms

modernizr-2.0.6.min.js

54 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 80% of them (35 requests) were addressed to the original Northernairnj.com, 7% (3 requests) were made to Fonts.googleapis.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (452 ms) belongs to the original domain Northernairnj.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 101.0 kB (2%)

Content Size

4.1 MB

After Optimization

4.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Northernairnj.com main page is 4.1 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. 35% of websites need less resources to load. Images take 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 9.9 kB

  • Original 13.4 kB
  • After minification 10.7 kB
  • After compression 3.5 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. This page needs HTML code to be minified as it can gain 2.6 kB, which is 20% 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 9.9 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 10.6 kB

  • Original 3.8 MB
  • After minification 3.8 MB

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. Northern Air Nj images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 48.0 kB

  • Original 198.2 kB
  • After minification 196.3 kB
  • After compression 150.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 48.0 kB or 24% of the original size.

CSS Optimization

-83%

Potential reduce by 32.6 kB

  • Original 39.4 kB
  • After minification 24.7 kB
  • After compression 6.8 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. Northernairnj.com needs all CSS files to be minified and compressed as it can save up to 32.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (74%)

Requests Now

39

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Northern Air Nj. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

northernairnj.com

northernairnj.com

100 ms

css

css

16 ms

css

css

28 ms

style.css

style.css

32 ms

modernizr-2.0.6.min.js

modernizr-2.0.6.min.js

54 ms

jquery.min.js

jquery.min.js

10 ms

js

js

40 ms

supersized.3.2.6.min.js

supersized.3.2.6.min.js

65 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

64 ms

jquery.nivo.slider.pack.js

jquery.nivo.slider.pack.js

47 ms

script.js

script.js

49 ms

normalize.css

normalize.css

27 ms

supersized.css

supersized.css

46 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

43 ms

nivo-slider.css

nivo-slider.css

57 ms

default.css

default.css

59 ms

css

css

14 ms

ga.js

ga.js

16 ms

gradient.png

gradient.png

26 ms

location.png

location.png

26 ms

phone.png

phone.png

61 ms

logo2.png

logo2.png

33 ms

1.jpg

1.jpg

49 ms

2.jpg

2.jpg

39 ms

3.jpg

3.jpg

106 ms

quote_shadow.png

quote_shadow.png

47 ms

read_more_dark.png

read_more_dark.png

65 ms

read_more_white.png

read_more_white.png

61 ms

6.jpg

6.jpg

83 ms

2.jpg

2.jpg

82 ms

3.jpg

3.jpg

103 ms

5.jpg

5.jpg

83 ms

footer_list.png

footer_list.png

95 ms

email.png

email.png

122 ms

phone.png

phone.png

109 ms

facebook.png

facebook.png

144 ms

quote.png

quote.png

122 ms

progress.gif

progress.gif

142 ms

fall.png

fall.png

452 ms

spring.png

spring.png

402 ms

winter.png

winter.png

368 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

22 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

22 ms

ga.js

ga.js

6 ms

Accessibility Review

northernairnj.com accessibility score

72

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

northernairnj.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

northernairnj.com SEO score

58

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

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 Northernairnj.com 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 Northernairnj.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.

Social Sharing Optimization

northernairnj.com

Open Graph description is not detected on the main page of Northern Air Nj. 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: