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ColdSend

Get 400 pre-warmed inboxes for $79/mo with 50,000 email capacity. Azure infrastructure eliminates warmup entirely. Start sending real campaigns today.

www.coldsend.pro · Added June 16, 2026 · Last analysed June 16, 2026 · via PeerPush · 79% unique tagline

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 16 June 2026; the live site may have changed since.

ColdSend looks production-ready overall, with complete legal pages, well-configured email security, and clean crawl signals. What needs work: missing several security headers and tracking cookies set before any opt-in.

Launched on PeerPush on June 16, 2026. The site is hosted on Amazon.com in the United States. We've detected 25 technologies on this site, covering directory, analytics, transactional email, and security. The stack includes Next.js, React, and Amazon SES.

It's running the same core stack as 1,535 other launches.

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

6.2
StackScope Score
Good
49/100 Launch Readiness
Partially ready
3/3* Legal
Complete*
2/2 Web Standards
Complete
Vibe Score 18 · Few AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (25) · Indie stack

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Hosting Vercel
Security Cloudflare Bot Management
HSTS
Email
Business email Microsoft 365
Transactional email Amazon SES
Resend
SendGrid
Build & Framework
Font Google Fonts
Framework React
Meta-framework Next.js
Analytics & Marketing
Analytics Google Analytics (3)
Microsoft Clarity
Simple Analytics
SEO Google Search Console
LinkedIn (2)
Tag management Google Tag Manager (3)

Infrastructure

Network
AS16509 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 21 Apr 2026 to 20 Jul 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF -all Strict (-all). Strong.
DKIM Detected via known email provider
DMARC p=quarantine Quarantine (moderate)
?
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 (6)

Cookies (6)
NameLifetimeDetected as
bcookie 12mo LinkedIn
lidc 23h LinkedIn
li_gc 5mo LinkedIn
_ga 1y Google Analytics
_ga_WV354SSG13 1y Google Analytics
__cf_bm < 1h Cloudflare

Readiness Breakdown How?

Custom title and meta description (partial) missing custom <title>
Open Graph tags (title, image, description) (partial) missing og:image
Responsive viewport meta tag
Favicon present
- Canonical URL declared
- Twitter card meta tags
- Semantic HTML (nav, main, article)

Performance How?

180 ms Server response
75% Faster than peers
724 ms Largest contentful paint
0.01 Cumulative layout shift
6.4 MB Page weight
4.8 MB Image weight
17 Third-party domains
1 Console errors
1 Failed requests

50 images: 9 oversized, 33 without width/height

Broken first-party requests (1), worth fixing
  • net::ERR_NAME_NOT_RESOLVED /packs/js/sdk.js

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

Vibe Score Breakdown How?

SignalPoints
AI copy signals +5
AI palette signals +5
AI writing signals +3
AI layout 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
? No directive declared
? None advertised

Well-Known Files

sitemap.xml (46 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Consent manager not detected
Analytics detected; tracking fires without visitor opt-in.
92% unique

Security Headers (1/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

Code splitting
32 JS files
2 CSS files
17 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.