jazz.com

https://jazz.com· First analyzed 01 Jun 2026· Updated 01 Jun 2026

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jazz.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.67.73.224

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

lee.ns.cloudflare.com.pola.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

390 ms10%

Speed Index

507 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

233 KB

9 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Platform

Railway

CDN

Cloudflare

Technology Stack

5 Technologies Detected

Analytics

CSS Frameworks

CDN

Frameworks

SEO Analysis

D52/100

Meta Tags7/15

Content7/12

Headings8/8

Technical13/25

E-E-A-T3/7

Images0/7

Links3/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

jazz.comjazz.com

Jazz.com — The Encyclopedia of Jazz

No description available for this page.

Title Length35 chars

Recommended: 50-60 chars (~213px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

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

10 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

37 rules

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F27/100

Bot Access

8/25

Machine Read.

13/25

Schema Data

0/25

Citation

6/25

AI Bot Access

6/14 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

noai metanoimageai meta

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

navheader/footer

Text ratio:9%

Words:333

Token eff.:Optimal

Sections/1K:12

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary14w

Descriptive Headingsavg 2.2w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

85/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

4/15

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.

74/100

A+

24 mg

CO₂e / view

233.1 KB

Page Weight

95%

Cleaner Than

New Visitor

27 mg

Returning (cached)

14 mg

Annual (10K/mo)

2.8 kg

Emission Segments

Data Center

1 mg

Network

7 mg

Device

16 mg

Resource Breakdown

CSS

227.1 KB

HTML

6.0 KB

Green Hosting Verified

Cloudflare

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

WAF

78d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.05.2026

Valid Until

18.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

jazz.com*.jazz.com

SHA-256 Fingerprint

5C:2A:E4:92:F0:C9:49:72:4E:1A:03:4C:9F:69:4B:31:F9:CC:B2:BF...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

388

cf-cache-status

HIT

cf-ray🇫🇷 Paris

a04a9976aa2499c0-CDG

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

date

Mon, 01 Jun 2026 01:56:01 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

route2.mx.cloudflare.net

route1.mx.cloudflare.net

route3.mx.cloudflare.net

Domain Information

jazz.com

Domain Age

32y 4m

Created

18.01.1994

Expires

19.01.2031

Last Updated

22.01.2026

Registrar

Name.com, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

62/100

Mobile Friendly2 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

Söhne + Tiempos Text

WCAG Partial

64/100

Readability

/30

19/30

14px · LH 1.50

Hierarchy

/20

17/20

3.14x ratio · ✓ H1→H6

WCAG

/25

14/25

1.15:1 min contrast

Performance

/25

14/25

3 fonts · 6 req

Heading Font

Söhne

Sans44px

Body Font

Tiempos Text

Sans14px

Contrast Ratio

1.15:1

17 issues

Reading Comfort

~38 CPL

Narrow lines

44px

11px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 17 elements below WCAG AA threshold (min 1.1:1).

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

✅ Strong hierarchy: Headlines are 3.1x larger than body text.

Buy on MyFontsFluid TypeFlesch 34

Color Palette

3 unique colors

Dark

#10100f

Background· 92.79999999999997%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(1)

Website Identity

jazz.com

32 years old

Location detected: 🇨🇦 Canadavia ip

Name.com, Inc.en

Sponsored

Last analyzed: 01 Jun 2026 at 01:56

Historical Analysis & Change Tracking