20k.org

https://20k.org· First analyzed 16 May 2026· Updated 16 May 2026

Export

20k.org

Mobile

Sponsored

Hosting Provider

Squarespace

squarespace.com

IP Address

198.49.23.145

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 New York, United States

ASN

AS53831

Organization

Squarespace, Inc.

Server

Squarespace

Nameservers

ns57.domaincontrol.com.ns58.domaincontrol.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

711 ms10%

Speed Index

924 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

302 KB

74 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Squarespace

website_builder

Technology Stack

7 Technologies Detected

Fonts

Google Fonts Adobe Fonts (Typekit)

Frameworks

Libraries

Other

CSS Frameworks

Security

SEO Analysis

B70/100

Meta Tags7/15

Content7/12

Headings4/8

Technical22/25

E-E-A-T3/7

Images5/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

20k.org20k.org

Twenty Thousand Hertz - The stories behind the world's most recogni...

A podcast revealing the stories behind the world's most recognizable and interesting sounds.

Title truncated.

Title Length96 chars

Recommended: 50-60 chars (~583px / 580px)

Description Length92 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (96 chars, ~583px). Will be truncated in search results.

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

342 URLs

robots.txt

59 rules

Sitemap reference found

Local SEO

Local Search Readiness

24/100

Needs Work

5 12 2

Sponsored

AI & LLM Readiness

D41/100

Bot Access

13/25

Machine Read.

13/25

Schema Data

3/25

Citation

12/25

AI Bot Access

5/14 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

nav

Text ratio:1%

Words:334

Token eff.:Optimal

Depth:1/5

Structured Data

2 JSON-LD

WebSiteLocalBusiness×1.1(min)

Citation Readiness

Opening Summary11w

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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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.

83/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

18/20

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

9/15

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

ARIA & Roles

6/15

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.

65/100

A+

37 mg

CO₂e / view

301.9 KB

Page Weight

90%

Cleaner Than

New Visitor

43 mg

Returning (cached)

21 mg

Annual (10K/mo)

4.5 kg

Emission Segments

Data Center

8 mg

Network

9 mg

Device

20 mg

Resource Breakdown

JavaScript

47.3 KB

Images

33.6 KB

CSS

72.0 KB

Fonts

1.3 KB

HTML

32.5 KB

Other

115.3 KB

Green Hosting Not Verified

Squarespace

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

46%Poor

Interactive

HTTPS

No WAF

42d

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

Valid From

30.03.2026

Valid Until

28.06.2026

Subject Alternative Names (1)

www.20k.org

SHA-256 Fingerprint

C5:57:3F:3E:65:F6:D7:34:86:58:03:1D:AF:89:C7:1B:3A:85:54:A4...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

4433

content-encoding

📦 Gzip(gzip)

content-length

32961

content-type

text/html;charset=utf-8

date

Sat, 16 May 2026 20:29:31 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx3.googlemail.com

alt2.aspmx.l.google.com

aspmx2.googlemail.com

alt1.aspmx.l.google.com

+1 more

Domain Information

20k.org

Domain Age

16y 11m

Created

20.06.2009

Expires

20.06.2033

Last Updated

14.07.2024

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

65/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Mont + effra

WCAG Partial

65/100

Readability

/30

22/30

16px · LH 1.60

Hierarchy

/20

12/20

1.84x ratio

WCAG

/25

16/25

1:1 min contrast

Performance

/25

15/25

2 fonts · 1 req

Heading Font

Mont

Sans29px

Body Font

effra

Sans16px

Contrast Ratio

1:1

17 issues

Reading Comfort

~38 CPL

Narrow lines

29px

16px

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 17 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Lean font stack: 2 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

GGoogle Fonts AAdobe Fonts Buy on MyFontsFlesch 63

Color Palette

12 unique colors

Light

#ffffff

Text· 10.1%

#1d0634

Accent· 19.5%

#2e034c

Primary· 12.9%

#381867

Accent· 12.8%

#3d3993

Secondary· 7.8%

#6152a6

Secondary· 7.2%

#d2529a

Accent· 7%

#3a5a85

Secondary· 6.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.squarespace.com(11)definitions.sqspcdn.com(8)use.typekit.net(1)

Website Identity

Twenty Thousand Hertz - The stories behind the world's most recognizable and interesting sounds.

LocalBusiness

<p class="" style="white-space:pre-wrap;">Sound, Uncovered. The secrets, stories, and science behind what you hear.</p>

www.20k.org

16 years old

Location detected: 🇺🇸 United Statesvia ip

GoDaddy.com, LLC📧 Google Workspaceen-US

Social Profiles

Facebook Instagram LinkedIn TikTok

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Last analyzed: 16 May 2026 at 23:23

Historical Analysis & Change Tracking