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tso.ca

https://tso.ca· First analyzed 15 May 2026· Updated 15 May 2026
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tso.ca
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

34.232.124.39

Site Location

🇨🇦 Canadavia tld

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

Nginx

CDN

CloudFront

Nameservers

dns2.easydns.net.dns1.easydns.com.dns3.easydns.org.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
916 KB
56 requests

Image Optimization

ResponsiveCloudinary
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
SilverStripe

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Fonts

3
Google FontsAdobe Fonts (Typekit)Adobe Fonts

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

D59/100
18
9
1
Meta Tags5/15
Content10/12
Headings8/8
Technical17/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
T
tso.catso.ca

Toronto Symphony Orchestra

Symphony With Us. Join us now for our 2025/26 season.

Title Length26 chars

Recommended: 50-60 chars (~166px / 580px)

Description Length53 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (7/8) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

734 URLs

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

11/100
Poor
3 12 2

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

Sponsored

AI & LLM Readiness

F34/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
7/25

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
Text ratio:4%
Words:1,415
Token eff.:Optimal
Sections/1K:0.7

Structured Data

Microdata

Citation Readiness

Opening Summary44w
Descriptive Headingsavg 2.8w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

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
77/100
13
Passed
3
Critical
1
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
65/100
B
93 mg
CO₂e / view
915.7 KB
Page Weight
80%
Cleaner Than
New Visitor
106 mg
vs
Returning (cached)
53 mg
Annual (10K/mo)
11.1 kg
Emission Segments
Data Center
5 mg
Network
27 mg
Device
61 mg
Resource Breakdown
JavaScript
223.0 KB
Images
635.7 KB
CSS
1.0 KB
Fonts
960 B
HTML
52.3 KB
Other
2.7 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

61%Fair
Interactive

HTTPS

No WAF

210d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

12.11.2025

Valid Until

11.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.tso.catso.ca

SHA-256 Fingerprint

96:E8:52:CC:DC:47:EC:52:CF:BF:FA:31:D8:C9:BF:8C:F2:B3:CD:62...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age
52927
cache-control
🟡 300s(public, max-age=300, no-transform, stale-while-revalidate=86...)
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Thu, 14 May 2026 18:33:41 GMT
Good Warning Issue

Email Infrastructure

Google Workspace

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt2.aspmx.l.google.com
alt1.aspmx.l.google.com
aspmx.l.google.com
alt3.aspmx.l.google.com

+1 more

Domain Information

tso.ca

Domain Age
25y 6m

Created

26.10.2000

Expires

19.07.2028

Last Updated

20.07.2023

Registrar

FastWebServer Internet Services Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked
Data Protection Officer mentioned

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.
C
66/100
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Playfair Display + museo-sans

WCAG Partial
79/100
Readability
/30
23/30

20px · LH 1.50

Hierarchy
/20
19/20

3.6x ratio · ✓ H1→H6

WCAG
/25
17/25

1:1 min contrast

Performance
/25
20/25

2 fonts · 1 req

Heading Font

Playfair Display

Serif72px

Body Font

museo-sans

Sans20px

Contrast Ratio

1:1

8 issues

Reading Comfort

~39 CPL

Narrow lines
72px
h1
48px
h2
20px
h3
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 3.6x larger than body text.

GGoogle FontsAAdobe FontsFlesch 39

Color Palette

10 unique colors
17.83:1 AAA Light
#f1f1f1
Background· 56.3%
#070707
Text· 2.8%
#ffc60b
Primary· 0%
#bab192
Secondary· 4.2%
#e8cf75
Accent· 2.5%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

2
Facebook PixelMid-Market
Reddit PixelMid-Market

Ad platforms and retargeting pixels

2

Categories

4

Total Tools

0

Enterprise

2

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

16 Resources

13
Scripts
3
Styles
12
Async
0
Defer

Top Script Sources

googletagmanager.com(4)youtube.com(2)connect.facebook.net(2)rules.quantcount.com(1)secure.quantserve.com(1)

Website Identity

tso.ca

25 years old
Location detected: 🇨🇦 Canadavia tld
FastWebServer Internet Services Inc.📧 Google Workspaceen

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Last analyzed: 15 May 2026 at 09:16

Historical Analysis & Change Tracking