Runlight

Visit site

Runlight is open source web analytics that installs into your app like any other package and keeps its numbers in your own database, without cookies.

Developer Tools Added 9 Nov 2026 Analysed 9 Nov 2026 via , also on PeerPush

Own this site?

Screenshot of Runlight

What we found

  1. It sends five of the six security headers we check; the missing one is Permissions-Policy.
  2. DMARC only monitors (p=none), so email spoofing this domain is still delivered.
  3. The site is hosted on The Constant Company in the United States.
  4. It welcomes AI crawlers and publishes an llms.txt.

Built with: 5 technologies

TechnologyType
Infrastructure
Vultr DNS DNS
HSTS Security
nginx Server
Email
Fastmail (3) Business email
Build & Framework
Adobe Fonts (2) Font

Each technology links to its own page: which other new sites launched with it.

Site checks

Page basicsHow we check
Custom title and meta description
Open Graph tags (title, image, description)
Twitter card meta tags
Canonical URL declared
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
Security headersHow we check
Referrer-Policy
X-Frame-Options
Permissions-Policy experimental
X-Content-Type-Options
Content-Security-Policy blocks 1 of the site's own resource
Strict-Transport-Security
X-XSS-Protection deprecated, not counted
Crawl files
robots.txt
sitemap.xml 210 URLs
security.txt optional
llms.txt
ads.txt only for ad-funded sites
humans.txt optional
AI crawlers WelcomedHow we check
llms.txt published
No AI bots blocked in robots.txt
Content-Signal none declared
Link headers none advertised

Email

StateRecordStatusWhat it does
SPF ?all Neutral (?all), monitoring only Lists the servers allowed to send email for the domain.
DMARC p=none Monitoring only (p=none) Tells receivers what to do with email that fails SPF or DKIM.
DKIM Found Signs outgoing email. We check common selectors only, so a provider may use another.
MTA-STS Not deployed Stops email to the domain being downgraded to plain text in transit.
TLS-RPT Not configured Sends the owner reports of failed encrypted deliveries.

Hosting and network

Network AS-VULTR - The Constant Company, LLC, US AS20473, US
DNS Vultr DNS authoritative nameservers
DNSSEC Not enabled DNS answers are unsigned
Certificate Let's Encrypt valid 9 Oct 2026 to 7 Jan 2027, as captured
Green hosting No record per The Green Web Foundation
Page build 3 JS files, 2 CSS files 3 third-party domains
App manifest Runlight display browser; 2 icons
Brand colours

Storage: 0 items

Nothing stored in the browser on page load.

Performance

MeasureThis siteReading
Server response 409 ms good, faster than 34% of sites
Largest contentful paint 1,472 ms good
Layout shift 0.05 good
Page weight 355 KB light
Image weight 178 KB light
Images 23 11 larger than shown, 15 without alt text
Third-party domains 3
Console errors 0 none
Failed requests 0 none

From a single automated render of the home page. A quick guide, not a substitute for Lighthouse or field data. How we measure

Notes

  1. Looks AI-built: no AI signals. How much the site looks AI-generated. It is a pattern match shown for interest, not a verdict.
  2. Performance comes from one render on 9 November 2026 and will vary between visits.

How we know

FirstSited records what new websites are built with, usually within a day of going live. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We checked this one in full: its tech stack, DNS, security headers and page basics. This page is what we saw on 9 November 2026; the live site may have changed since.

Every technology below links to its own page: which other new sites launched with it. Watch any of them and get every new site that uses it as it goes live, from £15 a month.

Spot a mistake? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.