Tools & Wizards About Us
airfilter.com screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

airfilter.com

Washable Air Filters, Cabin Filters, Cold Air Kits & Oil Filters | K&N

Page Load Speed

18.1 sec in total

First Response

149 ms

Resources Loaded

2.7 sec

Page Rendered

15.3 sec

airfilter.com screenshot

About Website

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

Shop replacement K&N air filters, cold air intakes, oil filters, cabin filters, home air filters, and other high performance parts. Factory direct from the official K&N website.

Visit airfilter.com

Key Findings

We analyzed Airfilter.com page load time and found that the first response time was 149 ms and then it took 17.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

airfilter.com performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value66.8 s

0/100

25%

SI (Speed Index)

Value15.5 s

0/100

10%

TBT (Total Blocking Time)

Value3,710 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.201

61/100

15%

TTI (Time to Interactive)

Value31.2 s

0/100

10%

Network Requests Diagram

www.knfilters.com

149 ms

calendar.css

69 ms

styles-m.css

71 ms

afterpay-express-checkout.css

69 ms

main.css

119 ms

Our browser made a total of 219 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Airfilter.com, 24% (53 requests) were made to Res.cloudinary.com and 2% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Polyfill-fastly.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 825.8 kB (5%)

Content Size

17.4 MB

After Optimization

16.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Airfilter.com main page is 17.4 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. Only a small number of websites need less resources to load. Images take 16.3 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 269.4 kB

  • Original 320.5 kB
  • After minification 276.5 kB
  • After compression 51.1 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 44.0 kB, which is 14% 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 269.4 kB or 84% of the original size.

Image Optimization

-1%

Potential reduce by 109.8 kB

  • Original 16.3 MB
  • After minification 16.2 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. Air Filter images are well optimized though.

JavaScript Optimization

-49%

Potential reduce by 323.1 kB

  • Original 653.8 kB
  • After minification 653.8 kB
  • After compression 330.8 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 323.1 kB or 49% of the original size.

CSS Optimization

-79%

Potential reduce by 123.5 kB

  • Original 157.1 kB
  • After minification 34.4 kB
  • After compression 33.6 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. Airfilter.com needs all CSS files to be minified and compressed as it can save up to 123.5 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 141 (69%)

Requests Now

203

After Optimization

62

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 203 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Air Filter. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 135 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.knfilters.com

www.knfilters.com

149 ms

calendar.css

calendar.css

69 ms

styles-m.css

styles-m.css

71 ms

afterpay-express-checkout.css

afterpay-express-checkout.css

69 ms

main.css

main.css

119 ms

styles-l.css

styles-l.css

60 ms

require.js

require.js

135 ms

disabled.js

disabled.js

138 ms

mixins.js

mixins.js

134 ms

requirejs-config.js

requirejs-config.js

133 ms

css

css

132 ms

css

css

160 ms

ps-widget.js

ps-widget.js

160 ms

ps-utid.js

ps-utid.js

568 ms

autopilot_sdk.js

autopilot_sdk.js

133 ms

wzbody.js

wzbody.js

496 ms

afterpay.js

afterpay.js

497 ms

afterpay-1.x.js

afterpay-1.x.js

132 ms

klaviyo.js

klaviyo.js

154 ms

jquery.js

jquery.js

417 ms

common.js

common.js

348 ms

dataPost.js

dataPost.js

416 ms

bootstrap.js

bootstrap.js

348 ms

app.js

app.js

348 ms

form-key-provider.js

form-key-provider.js

414 ms

mage-translation-dictionary.js

mage-translation-dictionary.js

449 ms

theme.js

theme.js

447 ms

gtm.js

gtm.js

494 ms

1395873802

1395873802

614 ms

j.php

j.php

483 ms

tag.js

tag.js

657 ms

Spot_2_FUEL_ADDITIVES_home_page_banner_eovrhl.jpg

Spot_2_FUEL_ADDITIVES_home_page_banner_eovrhl.jpg

736 ms

104094_FRONT.jpg

104094_FRONT.jpg

710 ms

66-1470_2.jpg

66-1470_2.jpg

693 ms

logo.svg

logo.svg

349 ms

stars.jpg

stars.jpg

349 ms

Home_Page_Banner_Icon_50-Off_jf4ghu.jpg

Home_Page_Banner_Icon_50-Off_jf4ghu.jpg

960 ms

Spot_2_HVAC_home_page_banner_r6aldg.jpg

Spot_2_HVAC_home_page_banner_r6aldg.jpg

959 ms

warehouse_sale_small_ejybit.jpg

warehouse_sale_small_ejybit.jpg

1097 ms

oil-filter-promo-sponsors_tbovqp.jpg

oil-filter-promo-sponsors_tbovqp.jpg

1095 ms

AOS_Banner_Home_Small_yqijto.jpg

AOS_Banner_Home_Small_yqijto.jpg

1590 ms

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1088 ms

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1098 ms

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1088 ms

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1094 ms

ino-year_yooakg.png

ino-year_yooakg.png

1097 ms

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1101 ms

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1103 ms

stars_ryamue.jpg

stars_ryamue.jpg

1099 ms

cld_65fd6ecea4554_33-2385_3D.jpg

cld_65fd6ecea4554_33-2385_3D.jpg

1602 ms

cld_65fd6f029f49c_intake_ug5mvd.png

cld_65fd6f029f49c_intake_ug5mvd.png

1589 ms

cld_65fd6f63d37b6_57-1542_3.jpg

cld_65fd6f63d37b6_57-1542_3.jpg

1593 ms

cld_65fd6fa93c59f_77-1566KP_2.jpg

cld_65fd6fa93c59f_77-1566KP_2.jpg

1596 ms

cld_65fd6ffc97630_77-9034KP_1.jpg

cld_65fd6ffc97630_77-9034KP_1.jpg

1600 ms

cld_65fd70400921d_33-2438_3D.png

cld_65fd70400921d_33-2438_3D.png

1637 ms

airfilter1.jpg

airfilter1.jpg

1589 ms

intake1.jpg

intake1.jpg

1591 ms

cabin1.jpg

cabin1.jpg

1593 ms

oil1.jpg

oil1.jpg

1594 ms

cleaning-group.jpg

cleaning-group.jpg

1594 ms

homeair1.jpg

homeair1.jpg

1598 ms

77-1005KC_1_yakhlq.png

77-1005KC_1_yakhlq.png

1597 ms

exhaust1.jpg

exhaust1.jpg

1595 ms

kn-powersports3.jpg

kn-powersports3.jpg

1601 ms

tuning1.jpg

tuning1.jpg

1604 ms

99_0805_icon_update_kjfkr2.png

99_0805_icon_update_kjfkr2.png

1602 ms

fluidchem_vjtqk4.jpg

fluidchem_vjtqk4.jpg

1600 ms

Industrial_filter_icon_aixd0n.png

Industrial_filter_icon_aixd0n.png

1605 ms

news1_kmfe1o.jpg

news1_kmfe1o.jpg

1603 ms

news2_xurlls.jpg

news2_xurlls.jpg

1605 ms

news3_ntv7n1.jpg

news3_ntv7n1.jpg

1607 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

554 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Hw5aX8.ttf

554 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

621 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr73w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr73w5aX8.ttf

624 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvC73w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvC73w5aX8.ttf

681 ms

config.js

config.js

337 ms

afterpay_logo_small-c21f624e13e513b83e729c61fa161b4d75643a4e62d4dcd3df62e1c5d3ed7326.svg

afterpay_logo_small-c21f624e13e513b83e729c61fa161b4d75643a4e62d4dcd3df62e1c5d3ed7326.svg

522 ms

polyfill.min.js

polyfill.min.js

2037 ms

slick.min.js

slick.min.js

321 ms

domReady.js

domReady.js

321 ms

jquery-mixin.js

jquery-mixin.js

145 ms

Luma-Icons.woff

Luma-Icons.woff

146 ms

fontastic.ttf

fontastic.ttf

279 ms

main.js

main.js

219 ms

bootstrap.js

bootstrap.js

224 ms

template.js

template.js

186 ms

confirm.js

confirm.js

186 ms

widget.js

widget.js

180 ms

types.js

types.js

207 ms

layout.js

layout.js

206 ms

text.js

text.js

203 ms

smart-keyboard-handler.js

smart-keyboard-handler.js

203 ms

mage.js

mage.js

202 ms

accordion.js

accordion.js

153 ms

wrapper.js

wrapper.js

238 ms

v.gif

v.gif

150 ms

ps-widget.js

ps-widget.js

161 ms

conv_v3.js

conv_v3.js

402 ms

magedelight_gtaglayer.js

magedelight_gtaglayer.js

113 ms

underscore.js

underscore.js

112 ms

translate.js

translate.js

109 ms

modal.js

modal.js

108 ms

knockout.js

knockout.js

107 ms

knockout-es5.js

knockout-es5.js

355 ms

customer-data.js

customer-data.js

349 ms

customer-data-mixin.js

customer-data-mixin.js

348 ms

version.js

version.js

347 ms

scripts.js

scripts.js

345 ms

engine.js

engine.js

345 ms

bootstrap.js

bootstrap.js

422 ms

observable_array.js

observable_array.js

422 ms

bound-nodes.js

bound-nodes.js

422 ms

js-translation.json

js-translation.json

542 ms

main.js

main.js

408 ms

registry.js

registry.js

405 ms

tabs.js

tabs.js

405 ms

main.js

main.js

401 ms

console-logger.js

console-logger.js

353 ms

red-orange-border_f81qp3.png

red-orange-border_f81qp3.png

979 ms

local.js

local.js

269 ms

modal-popup.html

modal-popup.html

400 ms

modal-slide.html

modal-slide.html

402 ms

modal-custom.html

modal-custom.html

397 ms

key-codes.js

key-codes.js

387 ms

core.js

core.js

389 ms

z-index.js

z-index.js

394 ms

ajax-loader.gif

ajax-loader.gif

748 ms

section-config.js

section-config.js

213 ms

url.js

url.js

214 ms

storage.js

storage.js

215 ms

storage-wrapper.js

storage-wrapper.js

214 ms

KenOn100xPerrisApril15_1962_smjmew.jpg

KenOn100xPerrisApril15_1962_smjmew.jpg

661 ms

77-2617kc_MAIN_rrpxzk.jpg

77-2617kc_MAIN_rrpxzk.jpg

655 ms

observable_source.js

observable_source.js

141 ms

renderer.js

renderer.js

139 ms

63-2621__alt_3_nabvjg.jpg

63-2621__alt_3_nabvjg.jpg

529 ms

_DSF0956_pf9piv.jpg

_DSF0956_pf9piv.jpg

534 ms

Tacoma_Oil_Change_2_o5nwoe.jpg

Tacoma_Oil_Change_2_o5nwoe.jpg

533 ms

69-8624TC_ALT_2_op4g6f.jpg

69-8624TC_ALT_2_op4g6f.jpg

538 ms

Kachow-2_k3aqet.jpg

Kachow-2_k3aqet.jpg

535 ms

C56A0088_zo0a8t.jpg

C56A0088_zo0a8t.jpg

528 ms

C56A8745-3_bfei3g.jpg

C56A8745-3_bfei3g.jpg

532 ms

darkened_image_jie4ub.jpg

darkened_image_jie4ub.jpg

537 ms

redorange_u2gvw2.jpg

redorange_u2gvw2.jpg

535 ms

footer-logo-2_j2zzsg

footer-logo-2_j2zzsg

532 ms

brightedge3.php

brightedge3.php

146 ms

Type_Color_showSymbol_True_showText_True_ufspsh.png

Type_Color_showSymbol_True_showText_True_ufspsh.png

102 ms

Type_Default_pahnb2.png

Type_Default_pahnb2.png

100 ms

Type_Color_showText_False_showSymbol_True_knzlaw.png

Type_Color_showText_False_showSymbol_True_knzlaw.png

101 ms

american_Filled_v0przh.png

american_Filled_v0przh.png

138 ms

print.css

print.css

111 ms

knockout-repeat.js

knockout-repeat.js

96 ms

knockout-fast-foreach.js

knockout-fast-foreach.js

102 ms

events.js

events.js

80 ms

tabs.js

tabs.js

76 ms

collapsible.js

collapsible.js

74 ms

js.storage.js

js.storage.js

87 ms

class.js

class.js

106 ms

wtbevents.pricespider.com

wtbevents.pricespider.com

287 ms

resizable.js

resizable.js

63 ms

i18n.js

i18n.js

64 ms

scope.js

scope.js

62 ms

range.js

range.js

78 ms

mage-init.js

mage-init.js

76 ms

keyboard.js

keyboard.js

85 ms

optgroup.js

optgroup.js

78 ms

after-render.js

after-render.js

82 ms

autoselect.js

autoselect.js

83 ms

datepicker.js

datepicker.js

110 ms

outer_click.js

outer_click.js

93 ms

fadeVisible.js

fadeVisible.js

87 ms

collapsible.js

collapsible.js

98 ms

staticChecked.js

staticChecked.js

92 ms

simple-checked.js

simple-checked.js

98 ms

bind-html.js

bind-html.js

110 ms

tooltip.js

tooltip.js

111 ms

color-picker.js

color-picker.js

116 ms

arrays.js

arrays.js

120 ms

compare.js

compare.js

169 ms

misc.js

misc.js

128 ms

objects.js

objects.js

130 ms

strings.js

strings.js

134 ms

template.js

template.js

142 ms

logger.js

logger.js

141 ms

entry-factory.js

entry-factory.js

156 ms

console-output-handler.js

console-output-handler.js

151 ms

formatter.js

formatter.js

159 ms

message-pool.js

message-pool.js

164 ms

levels-pool.js

levels-pool.js

154 ms

logger-utils.js

logger-utils.js

157 ms

data.js

data.js

154 ms

disable-selection.js

disable-selection.js

151 ms

focusable.js

focusable.js

150 ms

form.js

form.js

159 ms

ie.js

ie.js

167 ms

keycode.js

keycode.js

172 ms

labels.js

labels.js

172 ms

jquery-patch.js

jquery-patch.js

157 ms

plugin.js

plugin.js

152 ms

safe-active-element.js

safe-active-element.js

178 ms

safe-blur.js

safe-blur.js

181 ms

scroll-parent.js

scroll-parent.js

171 ms

tabbable.js

tabbable.js

183 ms

unique-id.js

unique-id.js

176 ms

loader.js

loader.js

168 ms

jquery.cookie.js

jquery.cookie.js

180 ms

async.js

async.js

182 ms

tooltip.html

tooltip.html

241 ms

spectrum.js

spectrum.js

161 ms

tinycolor.js

tinycolor.js

167 ms

entry.js

entry.js

127 ms

moment.js

moment.js

120 ms

cookie-wrapper.js

cookie-wrapper.js

35 ms

dom-observer.js

dom-observer.js

26 ms

bindings.js

bindings.js

32 ms

js.cookie.js

js.cookie.js

32 ms

webcomponents-bundle.js

webcomponents-bundle.js

32 ms

webcomponents-bundle.js

webcomponents-bundle.js

18 ms

Accessibility Review

airfilter.com accessibility score

84

Accessibility Issues

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

High

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

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

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

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

airfilter.com 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

High

Page has valid source maps

SEO Factors

airfilter.com SEO score

83

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Airfilter.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 Airfilter.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

airfilter.com

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