New: The State of Indie Launches: May 2026. What 17,652 indie launch pages run on once you strip Vercel out. Read

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EmailGuard

Check and fix your business email authentication. Free MX, SPF, DKIM and DMARC checker. Get answers in 10 seconds.

fixemailsetup.com · Added June 4, 2026 · Last analysed June 4, 2026 · via · 67% 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 4 June 2026; the live site may have changed since.

EmailGuard scores well across the board, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Visible gaps: incomplete email security.

Launched on Product Hunt on June 4, 2026. The site is hosted on Cloudflare in the United States, with a domain registered 2 weeks before launch. We've detected 15 technologies on this site, covering payments, security, auth, and captcha. The stack includes Clerk, Next.js, and React.

It's on one of the most common stacks we track, shared by 6,603 launches and more locked down than the typical Product Hunt launch.

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

10.0
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Web Standards
Complete
Vibe Score 30 · Some AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (15) · Indie stack

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Hosting Vercel
Protocol HTTP/3
Security Cloudflare Bot Management
HSTS
Email
Business email Alibaba Mail
Transactional email Resend
Build & Framework
Auth Clerk
Captcha Cloudflare Turnstile
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js
Commerce & Payments
Payments Creem
Stripe

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 18 May 2026 to 16 Aug 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
19 days
Registered May 2026 · Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)

Email Security

SPF -all Strict (-all). Strong.
DKIM Detected via known email provider
DMARC p=none None (p=none). Monitoring only.
?
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 (5)
NameLifetimeDetected as
_cfuvid session Cloudflare
__cf_bm < 1h Cloudflare
__client 1y Clerk
__client_uat 1y Clerk
__client_uat_O9ENTTgH 1y Clerk
Local storage (1)
KeySizeDetected as
__clerk_environment 6.5 KB Clerk

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)
Page title is 70 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.

Performance How?

151 ms Server response
80% Faster than peers
688 ms Largest contentful paint
0.01 Cumulative layout shift
1.5 MB Page weight
987 KB Image weight
2 Third-party domains
0 Console errors
0 Failed requests

1 images: 1 oversized, 1 without width/height

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 stack signals +10
Unfilled template placeholders +10

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

Blocks AI crawlers
llms.txt published
9 AI bots blocked in robots.txt
ai-train = no
search = yes
? ai-input (not declared)
? None advertised

Well-Known Files

sitemap.xml (276 URLs)
security.txt
llms.txt
ads.txt
humans.txt
88% unique

Security Headers (6/6)

Permissions-Policy experimental (check browser support)
Content-Security-Policy ⚠ CSP violation detected: your policy is blocking 1 of your own resource
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

HTML minified
CSS minified
JS minified
Code splitting
13 JS files
1 CSS files
2 Third-party domains

Brand Colours

App Manifest

EmailGuard - Email Authentication Checker
display: standalone 3 icons
theme #6C47FF
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.