corelightning.org

https://corelightning.org· First analyzed 01 Jun 2026· Updated 01 Jun 2026

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corelightning.org

Mobile

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Hosting Provider

Blockstream USA Corporation

IP Address

23.155.96.129

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Mountain View, United States

ASN

AS396997

Organization

Blockstream USA Corporation

Nameservers

dns2.registrar-servers.com.dns1.registrar-servers.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

719 KB

41 requests

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Ghost

Infrastructure

Hosting

Blockstream USA Corporation

Technology Stack

9 Technologies Detected

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Analytics

Libraries

CSS Frameworks

Icon Libraries

Tag Managers

Frameworks

SEO Analysis

B75/100

Meta Tags12/15

Content12/12

Headings3/8

Technical20/25

E-E-A-T2/7

Images4/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

corelightning.orgcorelightning.org

Core Lightning: Bitcoin micropayments for enterprise | Blockstream

Blockstream's open-source implementation of the Lightning Network, Core Lightning, is optimized for performance and modular expandability.

Title Length66 chars

Recommended: 50-60 chars (~397px / 580px)

Description Length138 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

5 issues found

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Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

8 rules

Sitemap reference found

Local SEO

Local Search Readiness

9/100

Poor

3 13 1

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

D48/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

5/25

Citation

13/25

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

nav

Text ratio:8%

Words:578

Token eff.:Optimal

Sections/1K:8.7

Depth:1/5

Structured Data

1 JSON-LD

Organization×1.1WebSite

Citation Readiness

Opening Summary16w

Descriptive Headingsavg 7w

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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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.

67/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

9/20

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

7/15

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

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•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.

43/100

89 mg

CO₂e / view

719.3 KB

Page Weight

80%

Cleaner Than

New Visitor

102 mg

Returning (cached)

51 mg

Annual (10K/mo)

10.7 kg

Emission Segments

Data Center

20 mg

Network

21 mg

Device

48 mg

Resource Breakdown

JavaScript

5.4 KB

Images

671.8 KB

CSS

28.7 KB

HTML

13.4 KB

Green Hosting Not Verified

Blockstream USA Corporation

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

32d

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

04.04.2026

Valid Until

03.07.2026

Subject Alternative Names (1)

corelightning.org

SHA-256 Fingerprint

E5:65:B2:8A:0D:BB:5D:B1:59:38:6F:8A:81:6F:15:AF:E7:04:4C:4B...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 0s(public, max-age=0)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

date

Mon, 01 Jun 2026 14:13:36 GMT

etag

W/"e498-jpRcRL60wwzdZ5HAJMGo+3LPv6U"

strict-transport-security

max-age=31536000; includeSubDomains

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

corelightning.org

Domain Age

4y 2m

Created

01.04.2022

Expires

01.04.2027

Last Updated

07.03.2026

Registrar

NameCheap, 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 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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

rigid-square + Inter

WCAG Partial

60/100

Readability

/30

21/30

16px · LH 1.56

Hierarchy

/20

8/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

15/25

2 fonts · 1 req

Heading Font

rigid-square

Sans

Body Font

Inter

Sans16px

Contrast Ratio

1:1

17 issues

Reading Comfort

~42 CPL

Narrow lines

40px

28px

16px

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

✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.

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

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

AAdobe Fonts Buy on MyFontsFluid TypeFlesch 31

Color Palette

5 unique colors

Light

#121317

Primary· 89%

#f4f1dc

Accent· 2.3%

#c9b35d

Secondary· 2.2%

#676350

Secondary· 1.6%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(2)local(2)cdn.blockstream.com(1)unpkg.com(1)cdn.jsdelivr.net(1)

Website Identity

Core Lightning: Bitcoin micropayments for enterprise | Blockstream

Blockstream's open-source implementation of the Lightning Network, Core Lightning, is optimized for performance and modular expandability.

[email protected]

corelightning.org/

4 years old

Location detected: 🇺🇸 United Statesvia ip

NameCheap, Inc.en

Social Profiles

GitHub Discord Telegram Medium

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Last analyzed: 01 Jun 2026 at 14:13

Historical Analysis & Change Tracking