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AgentCourier

Send and receive email programmatically via a REST API. Create an inbox in one API call.

Developer Tools

Added April 29, 2026 · Last analysed April 29, 2026 · via · 0% unique tagline (similar to AgentMail)

Own this Launch?
Screenshot of AgentCourier

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 29 April 2026; the live site may have changed since.

AgentCourier looks production-ready overall, with complete legal pages, a thorough launch checklist, and well-configured email security. Visible gaps: missing several security headers.

Launched on Product Hunt on April 29, 2026. The site is hosted on FIBERNETICS CORPORATION in Canada. We've detected 6 technologies on this site, covering CSS frameworks, DNS providers, frameworks, and meta-frameworks. The stack includes Next.js, React, and Tailwind CSS.

It's on one of the most common stacks we track, shared by 3,880 launches.

If you own this site, refresh the snapshot and see the full fix list any time →

7.1
StackScope Score
Good
100/100 Launch Readiness
Launch ready
0/6 Security Headers
Poor
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 5 · Few AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (6)

Infrastructure
DNS Namecheap DNS
OS Ubuntu (2)
Server nginx (2)
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js

Infrastructure

Network
295CA-TOR-ASN - FIBERNETICS CORPORATION, CA
AS36493 · CA
DNS
Namecheap DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 6 Mar 2026 to 4 Jun 2026
Certificate as captured in this snapshot, not a live check.

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
✓
DMARC p=reject Reject (strict). Strong.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (0)

This site uses no client-side storage we could detect on page load.

Readiness Breakdown How?

✓ 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)

Vibe Score Breakdown How?

SignalPoints
AI writing signals +5

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

Welcomes AI crawlers
✓ llms.txt published
✓ No AI bots blocked in robots.txt
Content-Signal
? No directive declared
Link headers
? None advertised

Well-Known Files

✓ robots.txt
✓ sitemap.xml (1 URLs)
✗ security.txt
✓ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/privacy
✓ Terms of Service
/terms
88% unique
Mentions:
Do Not Sell Updated: April 18, 2026

Security Headers (0/6)

✗
Referrer-Policy
✗
X-Frame-Options
✗
Permissions-Policy experimental (check browser support)
✗
X-Content-Type-Options
✗
Content-Security-Policy
✗
Strict-Transport-Security
–
X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

549ms response time
Faster than 31% of sites
1 third-party domains loaded

Build

✓ Code splitting
7 JS files
1 CSS files
1 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.