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sandiegosymphony.org

https://sandiegosymphony.org· First analyzed 22 May 2026· Updated 22 May 2026
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sandiegosymphony.org
Desktop screenshot of sandiegosymphony.org
Mobile screenshot of sandiegosymphony.org
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

50.112.26.21

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Portland, United States

ASN

AS16509

Organization

AWS EC2 (us-west-2)

Server

Nginx

Nameservers

ns54.domaincontrol.com.ns53.domaincontrol.com.

Performance

83

Core Web Vitals

Weight

First Contentful Paint
2.0 s10%
Speed Index
2.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
16.2 MB
130 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Amazon Web Services (AWS)

Technology Stack

14 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

CSS Frameworks

2
Bootstrap
Tailwind CSS

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Frameworks

1
Angular

Other

1
GSAP

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Customer Support

1
Olark

Web Servers

1
Nginxv1.18.0

Libraries

1
Lightbox

SEO Analysis

D53/100
15
9
2
Meta Tags4/15
Content10/12
Headings8/8
Technical13/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile1/4
Indexability3/3
S
sandiegosymphony.orgsandiegosymphony.org

Home | Jacobs Music Center

No description available for this page.

Title Length26 chars

Recommended: 50-60 chars (~162px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (59/60) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

2 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

11/100
Poor
5 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

F38/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
11/25

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:3%
Words:713
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary11w
Descriptive Headingsavg 5.2w
Canonical URL
Open Graph2/3
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

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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.
A
85/100
15
Passed
1
Critical
2
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
15/15
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...
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.
26/100
F
1.68 g
CO₂e / view
16.2 MB
Page Weight
5%
Cleaner Than
New Visitor
1.92 g
vs
Returning (cached)
959 mg
Annual (10K/mo)
201.4 kg
Emission Segments
Data Center
82 mg
Network
493 mg
Device
1.10 g
Resource Breakdown
JavaScript
308.2 KB
Images
12.2 MB
CSS
3.7 MB
HTML
13.5 KB
Other
900 B
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

49d

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

Valid From

12.04.2026

Valid Until

11.07.2026

Subject Alternative Names (1)

sandiegosymphony.org

SHA-256 Fingerprint

8C:54:9C:19:E6:AA:32:9F:40:02:E4:52:24:92:0F:B6:D3:0B:71:74...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Fri, 22 May 2026 20:17:39 GMT
server
nginx/1.18.0 (Ubuntu)
strict-transport-security
max-age=31536000
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

sandiegosymphony-org.mail.protection.outlook.com

Domain Information

sandiegosymphony.org

Domain Age
27y 2m

Created

06.03.1999

Expires

06.03.2028

Last Updated

20.04.2026

Registrar

GoDaddy.com, LLC

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.
C
66/100
Mobile Friendly7 breakpoints
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=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica + Trebuchet MS

WCAG Partial
54/100
Readability
/30
22/30

18px · LH 1.33

Hierarchy
/20
15/20

3x ratio · ✓ H1→H6

WCAG
/25
8/25

1:1 min contrast

Performance
/25
9/25

4 fonts · 1 req

Heading Font

Helvetica

Sans54px

Body Font

Trebuchet MS

Sans18px

Contrast Ratio

1:1

19 issues

Reading Comfort

~41 CPL

Narrow lines
54px
h1
110px
h2
40px
h3
18px
p
Minor Third
Scale

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 20/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 19 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 3.0x larger than body text.

AAdobe FontsBuy on MyFontsFlesch 20

Color Palette

7 unique colors
18.32:1 AAA Dark
#171414
Text· 32.1%
#ffffff
Text· 13.8%
#c6b789
Primary· 4.6%

Business & Marketing Stack

4 Tools Detected

Advanced

Customer Support

1
OlarkSMB

Live chat and helpdesk tools

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Facebook PixelMid-Market

Ad platforms and retargeting pixels

3

Categories

4

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
13
Async
1
Defer

Top Script Sources

googletagmanager.com(8)local(7)connect.facebook.net(2)google-analytics.com(1)static.olark.com(1)

Website Identity

sandiegosymphony.org

tickets@sandiegosymphony.org
27 years old
Location detected: 🇺🇸 United Statesvia ip
GoDaddy.com, LLC📧 Microsoft 365en

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Last analyzed: 22 May 2026 at 20:18

Historical Analysis & Change Tracking