Tools & Wizards About Us
ca.zennioptical.com screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

ca.zennioptical.com

Glasses Online | Eyewear for Everyone™ | Zenni Optical Canada

Page Load Speed

6.4 sec in total

First Response

451 ms

Resources Loaded

3 sec

Page Rendered

3 sec

ca.zennioptical.com screenshot

About Website

Visit ca.zennioptical.com now to see the best up-to-date Ca Zenni Optical content for United States and also check out these interesting facts you probably never knew about ca.zennioptical.com

Find affordable eyeglasses at Zenni! We have glasses for everyone and a virtual try-on tool to help you choose. Shop our online store and save on your next pair!

Visit ca.zennioptical.com

Key Findings

We analyzed Ca.zennioptical.com page load time and found that the first response time was 451 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

ca.zennioptical.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value27.0 s

0/100

10%

TBT (Total Blocking Time)

Value13,120 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.303

39/100

15%

TTI (Time to Interactive)

Value43.1 s

0/100

10%

Network Requests Diagram

ca.zennioptical.com

451 ms

css2

84 ms

css2

122 ms

cRsv4Ujrg0HZSQ.js

89 ms

magic_ai.js

447 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 9% of them (9 requests) were addressed to the original Ca.zennioptical.com, 43% (44 requests) were made to Static.zennioptical.com and 4% (4 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Static.zennioptical.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (19%)

Content Size

6.1 MB

After Optimization

4.9 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Ca.zennioptical.com main page is 6.1 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. Only a small number of websites need less resources to load. Images take 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 922.5 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 166.9 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 922.5 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 4.4 kB

  • Original 3.3 MB
  • After minification 3.3 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. Ca Zenni Optical images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 214.9 kB

  • Original 1.7 MB
  • After minification 1.7 MB
  • After compression 1.5 MB

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 214.9 kB or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 47 (49%)

Requests Now

96

After Optimization

49

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ca Zenni Optical. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 40 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

ca.zennioptical.com

ca.zennioptical.com

451 ms

css2

css2

84 ms

css2

css2

122 ms

cRsv4Ujrg0HZSQ.js

cRsv4Ujrg0HZSQ.js

89 ms

magic_ai.js

magic_ai.js

447 ms

jquery.min.js

jquery.min.js

353 ms

appleid.auth.js

appleid.auth.js

209 ms

client

client

343 ms

fwn.js

fwn.js

343 ms

enterprise.js

enterprise.js

73 ms

polyfill-aebff72c7d3966a71cc6.js

polyfill-aebff72c7d3966a71cc6.js

395 ms

app-9c83d0c46e144e63314a.js

app-9c83d0c46e144e63314a.js

626 ms

dc6a8720040df98778fe970bf6c000a41750d3ae-19185889a2e87f3b9205.js

dc6a8720040df98778fe970bf6c000a41750d3ae-19185889a2e87f3b9205.js

393 ms

4f2a9277-bea14f81a8c34a1cc860.js

4f2a9277-bea14f81a8c34a1cc860.js

441 ms

cb1608f2-475dd4d7bb86509ee153.js

cb1608f2-475dd4d7bb86509ee153.js

537 ms

framework-81a244650226a3179495.js

framework-81a244650226a3179495.js

392 ms

webpack-runtime-37d09cc586a60438b577.js

webpack-runtime-37d09cc586a60438b577.js

578 ms

AoOJ2c

AoOJ2c

448 ms

gtm.js

gtm.js

562 ms

loading-01.gif

loading-01.gif

242 ms

zenni-logo.png

zenni-logo.png

340 ms

zenni-logo-sm.png

zenni-logo-sm.png

381 ms

storeSiteCA_flag.jpg

storeSiteCA_flag.jpg

379 ms

240115_EyeQ_Phase1_1Tile_lens_logo-xs.png

240115_EyeQ_Phase1_1Tile_lens_logo-xs.png

434 ms

eyeglasses.jpg

eyeglasses.jpg

830 ms

progressives.jpg

progressives.jpg

377 ms

sunglasses.jpg

sunglasses.jpg

376 ms

transitions.jpg

transitions.jpg

432 ms

bifocals.jpg

bifocals.jpg

431 ms

readers.jpg

readers.jpg

830 ms

bluelight.jpg

bluelight.jpg

430 ms

fl41_womenstlc_nav.png

fl41_womenstlc_nav.png

846 ms

protective.jpg

protective.jpg

827 ms

VR_lens_category.jpg

VR_lens_category.jpg

828 ms

2-daydelivery.jpg

2-daydelivery.jpg

827 ms

020724_CuratedfroYou_model_hp_carousel-xs.gif

020724_CuratedfroYou_model_hp_carousel-xs.gif

841 ms

readers_hp_carousel-xs.png

readers_hp_carousel-xs.png

1280 ms

022124_Festivals_hp_carouse-xs.png

022124_Festivals_hp_carouse-xs.png

1385 ms

231218_Progressives_hp_carousel-xs.png

231218_Progressives_hp_carousel-xs.png

1508 ms

Trust-Stars-Black.svg

Trust-Stars-Black.svg

832 ms

Chevron-right-regular.svg

Chevron-right-regular.svg

837 ms

240215_green_campaign_hp_3Tile-xs.png

240215_green_campaign_hp_3Tile-xs.png

843 ms

Drivewear_HP_3Tile-xs.gif

Drivewear_HP_3Tile-xs.gif

842 ms

020524_FrameShapeRoundCam_hp_3Tile-xs.jpg

020524_FrameShapeRoundCam_hp_3Tile-xs.jpg

843 ms

sunwear_hp_2Tile-xs.png

sunwear_hp_2Tile-xs.png

942 ms

231213_VR_fog_resistant_hp_2Tile-xs.png

231213_VR_fog_resistant_hp_2Tile-xs.png

946 ms

shop_by_face_shape-sm.png

shop_by_face_shape-sm.png

1713 ms

shop_by_style-sm.png

shop_by_style-sm.png

1833 ms

shop_by_color-sm.png

shop_by_color-sm.png

1716 ms

Women_hp_3Tile-xs.png

Women_hp_3Tile-xs.png

1870 ms

Men_hp_3Tile-xs.png

Men_hp_3Tile-xs.png

1841 ms

Kids_hp_3Tile-xs.png

Kids_hp_3Tile-xs.png

1951 ms

240304_Iris_Forever_hp_carousel-xs.png

240304_Iris_Forever_hp_carousel-xs.png

1862 ms

logo_Keke_Palmer_CG_campaign_hp_carousel_optical-xs.png

logo_Keke_Palmer_CG_campaign_hp_carousel_optical-xs.png

1956 ms

api.js

api.js

100 ms

S6uyw4BMUTPHvxk.ttf

S6uyw4BMUTPHvxk.ttf

292 ms

S6u9w4BMUTPHh7USew8.ttf

S6u9w4BMUTPHh7USew8.ttf

488 ms

S6u9w4BMUTPHh6UVew8.ttf

S6u9w4BMUTPHh6UVew8.ttf

696 ms

S6u9w4BMUTPHh50Xew8.ttf

S6u9w4BMUTPHh50Xew8.ttf

695 ms

suitcase_type_foundry_-_tabacg1-bold-webfont.woff

suitcase_type_foundry_-_tabacg1-bold-webfont.woff

1684 ms

111723_Cassell_hp_carousel_logo-xs.jpg

111723_Cassell_hp_carousel_logo-xs.jpg

1733 ms

recaptcha__en.js

recaptcha__en.js

523 ms

230907_Kittles_HP_carousel-xs.jpg

230907_Kittles_HP_carousel-xs.jpg

1632 ms

230921_cynthia_rowley_campaign_orange_hp_carousel-xs.png

230921_cynthia_rowley_campaign_orange_hp_carousel-xs.png

1602 ms

231020_Timo_hp_carousel-xs.png

231020_Timo_hp_carousel-xs.png

1627 ms

ZEN_Sym_teal.png

ZEN_Sym_teal.png

1595 ms

logo-footer.png

logo-footer.png

1599 ms

COLTS_FDAConformanceSealGS.jpg

COLTS_FDAConformanceSealGS.jpg

1610 ms

js

js

174 ms

destination

destination

494 ms

core.js

core.js

779 ms

otSDKStub.js

otSDKStub.js

770 ms

fbevents.js

fbevents.js

701 ms

A2293205-9256-431e-84ad-808c125934c31.js

A2293205-9256-431e-84ad-808c125934c31.js

809 ms

bat.js

bat.js

764 ms

vck.js

vck.js

805 ms

api.ipify.org

api.ipify.org

805 ms

ld.js

ld.js

661 ms

de1e4088f11b3.js

de1e4088f11b3.js

802 ms

events.js

events.js

801 ms

up_loader.1.1.0.js

up_loader.1.1.0.js

753 ms

755 ms

destination

destination

526 ms

scevent.min.js

scevent.min.js

851 ms

CobrowseBootstrap.js

CobrowseBootstrap.js

945 ms

activityi;src=6592478;type=audie0;cat=zen_c0;ord=2109521664749;npa=0;auiddc=1055970776.1709810645;u3=https%3A%2F%2Fca.zennioptical.com%2F;u13=No%20UserID;pscdl=noapi;gtm=45fe4340z8832013879za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fca.zennioptical.com%2F

activityi;src=6592478;type=audie0;cat=zen_c0;ord=2109521664749;npa=0;auiddc=1055970776.1709810645;u3=https%3A%2F%2Fca.zennioptical.com%2F;u13=No%20UserID;pscdl=noapi;gtm=45fe4340z8832013879za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fca.zennioptical.com%2F

570 ms

377 ms

syncframe

syncframe

482 ms

1571497956325245

1571497956325245

159 ms

bundle~023efe8388b268ca6c9a.js

bundle~023efe8388b268ca6c9a.js

210 ms

1f4922aa-6e00-4568-8f0e-cff25a479b72.json

1f4922aa-6e00-4568-8f0e-cff25a479b72.json

229 ms

main.cb6ceab7.js

main.cb6ceab7.js

195 ms

nsjs

nsjs

365 ms

main.MTNhZGZiOTRkMQ.js

main.MTNhZGZiOTRkMQ.js

160 ms

194 ms

195 ms

location

location

222 ms

117 ms

src=6592478;type=audie0;cat=zen_c0;ord=2109521664749;npa=0;auiddc=*;u3=https%3A%2F%2Fca.zennioptical.com%2F;u13=No%20UserID;pscdl=noapi;gtm=45fe4340z8832013879za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fca.zennioptical.com%2F

src=6592478;type=audie0;cat=zen_c0;ord=2109521664749;npa=0;auiddc=*;u3=https%3A%2F%2Fca.zennioptical.com%2F;u13=No%20UserID;pscdl=noapi;gtm=45fe4340z8832013879za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fca.zennioptical.com%2F

165 ms

nsjs

nsjs

95 ms

otBannerSdk.js

otBannerSdk.js

49 ms

check

check

48 ms

ct.html

ct.html

93 ms

Accessibility Review

ca.zennioptical.com accessibility score

81

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

button, link, and menuitem elements do not have accessible names.

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

High

Links do not have a discernible name

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

ca.zennioptical.com best practices score

67

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

Missing source maps for large first-party JavaScript

SEO Factors

ca.zennioptical.com SEO score

86

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

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

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 Ca.zennioptical.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 Ca.zennioptical.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

ca.zennioptical.com

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