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Domain report

lightning.engineering

lightning.engineering ranks in the top 0.30% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 8 distinct hosts observed under it.

Explore lightning.engineering in the Web Graph

Connectivity

#395,878harmonic-centrality rank
Top percentile
0.30%
Hosts observed
8

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://lightning.engineering/ answered with HTTP 200.

DNS records

A
  • 172.67.167.106
  • 104.21.65.216
AAAA
  • 2606:4700:3032::ac43:a76a
  • 2606:4700:3033::6815:41d8
MX
  • 1 aspmx.l.google.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
NS
  • dahlia.ns.cloudflare.com.
  • donald.ns.cloudflare.com.
AS
Server in network CLOUDFLARENET, AS13335 · United States172.67.167.0/24, which holds 172.67.167.106

Live preview

Screenshot of lightning.engineering

This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.

Since lightning.engineering can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html
Cache-Control
public, max-age=0, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
base-uri 'self'; default-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; script-src 'self' 'unsafe-inline' https://www.google-analytics.com https://www.googletagmanager.com; img-src data: https:; font-src 'self' data: https://fonts.gstatic.com; connect-src 'self' https://www.google-analytics.com; frame-src 'self' https://lightninglabs.substack.com; frame-ancestors 'self';
Strict-Transport-Security
max-age=31536000; includeSubDomains; preload
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
nosniff
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://lightning.engineering/HTTP 301

    → https://lightning.engineering/

  2. 2.https://lightning.engineering/HTTP 200

Meta tags

Title
Lightning Labs - faster, cheaper, global layer two bitcoin | Lightning Labs
Description
Building faster, cheaper, global layer-two bitcoin
Canonical
https://lightning.engineering/
Robots
Not set
Generator
Gatsby 5.13.3
Open Graph title
Lightning Labs - faster, cheaper, global layer two bitcoin
Open Graph description
Building faster, cheaper, global layer-two bitcoin
Open Graph image
Not set
Open Graph type
website
Twitter card
summary
Twitter title
Lightning Labs - faster, cheaper, global layer two bitcoin
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
0
Disallow rules (other agents)
0

No Sitemap declared in robots.txt.

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • Gatsbyframework

    Found "__gatsby" in the page's HTML

  • Google Analyticsanalytics

    Found "www.google-analytics.com" in the page's HTML

Related domains

Similar connectivity

Domains ranked just above and below it in the same snapshot.