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opera-nice.org

https://opera-nice.org· First analyzed 29 May 2026· Updated 29 May 2026
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opera-nice.org
Desktop screenshot of opera-nice.org
Mobile screenshot of opera-nice.org
Mobile

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Hosting Provider

DRI SAS

IP Address

46.18.195.140

Site Location

🇫🇷 Nice, Francevia schema_nap

Server Location

🇫🇷 Nantes, France

ASN

AS6738

Server

Apache

Nameservers

ns2.produhost.net.ns3.produhost.net.ns1.produhost.net.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
984 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
755 KB
30 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
Opera Themev1.0.0Custom
by MNCA
View Theme

Technology Stack

6 Technologies Detected

Plugins

3
Mailjet For Wordpress
Mnca Flex Lists
WP Rocket

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

A+90/100
28
3
1
Meta Tags12/15
Content11/12
Headings8/8
Technical25/25
E-E-A-T5/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
O
opera-nice.orgopera-nice.org

Opéra Nice Côte d'Azur - Accueil

Site officiel de l'Opéra Nice Côte d'Azur, programmation (opéras, concerts, ballets) et actualité. Tarifs, abonnements et informations pratiques.

Title Length32 chars

Recommended: 50-60 chars (~192px / 580px)

Description Length145 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (23/29) — critical for accessibility and SEO

4 issues found

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Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

44/100
Fair
12 9

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AI & LLM Readiness

D55/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
8/25
Citation
15/25

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
def. listsnavheader/footer
Text ratio:7%
Words:1,182
Token eff.:Optimal
Sections/1K:27.9
Depth:3/5

Structured Data

2 JSON-LD
NewsArticle×1.2microdataOrganization×1.1WebSiteEventmicrodata
sameAs entity links

Citation Readiness

Opening Summary70w
Descriptive Headingsavg 3.4w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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.
A
89/100
16
Passed
1
Critical
1
Warnings
Images & Alt Text
20/20
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
12/15
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
10/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
56/100
B
93 mg
CO₂e / view
754.8 KB
Page Weight
80%
Cleaner Than
New Visitor
107 mg
vs
Returning (cached)
53 mg
Annual (10K/mo)
11.2 kg
Emission Segments
Data Center
21 mg
Network
22 mg
Device
50 mg
Resource Breakdown
JavaScript
34.1 KB
Images
440.0 KB
CSS
260.7 KB
HTML
20.0 KB
Green Hosting Not Verified
DRI SAS
3 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

88d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

28.05.2026

Valid Until

26.08.2026

Subject Alternative Names (3)

opera-nice.orgwww.opera-de-nice.orgwww.opera-nice.org

SHA-256 Fingerprint

72:BD:63:58:87:24:0F:EB:D7:81:FE:CD:A1:48:F7:1A:2D:48:6B:79...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-length
20134
content-security-policy
default-src 'self' blob: https://*.wistia.com https://*.clou...
content-type
text/html; charset=UTF-8
date
Fri, 29 May 2026 18:56:58 GMT
last-modified
Fri, 29 May 2026 13:01:58 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

25

SPF
DKIM
DMARC

Domain Information

opera-nice.org

Domain Age
22y 2m

Created

17.03.2004

Expires

17.03.2028

Last Updated

28.01.2026

Registrar

PDR Ltd. d/b/a PublicDomainRegistry.com

DNSSEC
Not Enabled

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
77/100
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...
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Typography & Readability

Abhaya Libre + Zilla Slab

WCAG Partial
70/100
Readability
/30
22/30

20px · LH 1.30

Hierarchy
/20
20/20

2.5x ratio · ✓ H1→H6

WCAG
/25
10/25

1.21:1 min contrast

Performance
/25
18/25

2 fonts · 4 req

Heading Font

Abhaya Libre

Sans50px

Body Font

Zilla Slab

Serif20px

Contrast Ratio

1.21:1

5 issues

Reading Comfort

~31 CPL

Narrow lines
50px
h1
50px
h2
50px
h3
25px
h4
20px
p

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

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 47/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.2:1).

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

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

Buy on MyFontsFlesch 47

Color Palette

6 unique colors
Light
#f9fafc
Primary· 53.39999999999999%
#4438ca
Accent· 27%
#201615
Secondary· 10.5%
#bcbdc9
Secondary· 3.8%
#5d4b86
Secondary· 2.9%
#3f2e65
Secondary· 2.4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

10 Resources

7
Scripts
3
Styles
2
Async
1
Defer

Top Script Sources

opera-nice.org(6)stats.nice.fr(1)

Website Identity

Opéra Nice Côte d'Azur

Opéra Nice Côte d'Azur

Organization

Opéra Nice Côte d'Azur

+33492174040
www.opera-nice.org
22 years old

4-6 rue Saint François de Paule, Nice

06300, Nice

France

Location detected: 🇫🇷 France, Nicevia schema_nap
PDR Ltd. d/b/a PublicDomainRegistry.comfr-FR

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Last analyzed: 29 May 2026 at 18:57

Historical Analysis & Change Tracking