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opto.ca

https://opto.ca· First analyzed 09 May 2026· Updated 09 May 2026
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opto.ca
Desktop screenshot of opto.ca
Mobile screenshot of opto.ca
Mobile

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Hosting Provider

Stack Harbor Inc

IP Address

23.128.160.24

Site Location

🇨🇦 Canadavia tld

Server Location

🇨🇦 Montreal, Canada

ASN

AS397181

Organization

Stack Harbor Inc

Server

LiteSpeed

Nameservers

ns1.cyanserver.ca.ns2.cyanserver.ca.

Performance

73

Core Web Vitals

Weight

First Contentful Paint
12.0 s10%
Speed Index
15.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.7 MB
54 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
Drupal
Infrastructure
Hosting
Stack Harbor Inc

Technology Stack

12 Technologies Detected

Libraries

2
jQuery
jQuery UI

CSS Frameworks

2
Bootstrap
Tailwind CSS

Icon Libraries

2
Font AwesomeMaterial Icons

Analytics

2
Google Analytics
Google Analytics 4

Other

1
Polyfill.io

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
LiteSpeed

SEO Analysis

C68/100
21
7
1
Meta Tags9/15
Content10/12
Headings5/8
Technical19/25
E-E-A-T3/7
Images3/7
Links5/5
URL5/5
Social2/5
Freshness0/4
Mobile4/4
Indexability3/3
O
opto.caopto.ca

Home | Canadian Association of Optometrists

No description available for this page.

Title Length43 chars

Recommended: 50-60 chars (~264px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

885 URLs

robots.txt

53 rules

Local SEO

Local Search Readiness

12/100
Poor
4 12 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

D44/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
13/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
navheader/footer
Text ratio:6%
Words:349
Token eff.:Optimal
Sections/1K:14.3
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary16w
Descriptive Headingsavg 3w
Canonical URL
Open Graph0/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
B
78/100
12
Passed
3
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
5/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
33/100
E
338 mg
CO₂e / view
2.7 MB
Page Weight
30%
Cleaner Than
New Visitor
387 mg
vs
Returning (cached)
193 mg
Annual (10K/mo)
40.6 kg
Emission Segments
Data Center
76 mg
Network
81 mg
Device
182 mg
Resource Breakdown
JavaScript
84.4 KB
Images
2.0 MB
CSS
594.3 KB
Fonts
2.7 KB
HTML
7.6 KB
Green Hosting Not Verified
Stack Harbor Inc
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

41%Poor
Interactive

HTTPS

No WAF

50d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

31.03.2026

Valid Until

29.06.2026

Subject Alternative Names (2)

*.opto.caopto.ca

SHA-256 Fingerprint

08:FD:75:2D:D7:DD:06:36:E9:74:69:1A:DB:36:CC:40:06:AF:D8:43...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...
cache-control
🟡 6 Hours(max-age=21600, public)
content-encoding
⚡ Brotli(br)
content-language
en
content-length
7519
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

opto-ca.mail.protection.outlook.com

Domain Information

opto.ca

Domain Age
25y 5m

Created

25.11.2000

Expires

27.08.2030

Last Updated

28.07.2023

Registrar

Go Daddy Domains Canada, Inc

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
B
70/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1, shrink-to-fit=no
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Georgia + Arial

WCAG Partial
69/100
Readability
/30
24/30

16px · LH 1.80

Hierarchy
/20
16/20

2.6x ratio

WCAG
/25
15/25

1:1 min contrast

Performance
/25
14/25

System fonts

Heading Font

Georgia

Serif42px

Body Font

Arial

Sans16px

Contrast Ratio

1:1

2 issues

Reading Comfort

~36 CPL

Narrow lines
42px
h1
32px
h2
24px
h4
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

✅ System fonts: Zero font loading delay — best possible LCP impact.

GGoogle FontsBuy on MyFontsFluid Type (rem)

Color Palette

7 unique colors
Dark
#756363
Secondary· 9.3%
#fcf7f3
Background· 45.4%
#001489
Primary· 15.8%
#b8a8a0
Secondary· 12.3%
#161a38
Primary· 10.1%
#dfd8d1
Secondary· 6%
#000871
Accent· 1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

25 Resources

15
Scripts
10
Styles
3
Async
0
Defer

Top Script Sources

local(8)googletagmanager.com(2)gstatic.com(1)polyfill.io(1)cdn.jsdelivr.net(1)

Website Identity

opto.ca

info@opto.ca
25 years old
Location detected: 🇨🇦 Canadavia tld
Go Daddy Domains Canada, Inc📧 Microsoft 365en

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Last analyzed: 09 May 2026 at 16:49

Historical Analysis & Change Tracking