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PDFMergely

Merge, split, compress and edit PDFs entirely in your browser. Your files never leave your device, no uploads, no servers, 100% private.

Productivity

Added June 16, 2026 · Last analysed June 16, 2026 · via · also on Hacker News

Own this Launch?
Screenshot of PDFMergely

StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored 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.

Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.

PDFMergely scores highly overall, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Main gaps: no email security records.

Launched on Product Hunt on June 16, 2026. The site is hosted on Vercel, with a domain registered 1 week before launch. Our crawler found 11 technologies on this site, covering analytics, consent tooling, CSS frameworks, and DNS providers. The stack includes Google, Next.js, and React.

It's also on one of the most common stacks we track, shared by 14,964 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
6/6 Security Headers
Strong
3/3 Legal
Complete
2/2 Crawl files
Complete
93/100 Performance
Fast
Vibe Score 0 · No 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 (11)

Infrastructure
DNS Spaceship DNS
Hosting Vercel
Security HSTS
Email
Business email Google Workspace
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js
Analytics & Marketing
Analytics Google Analytics (4)
Consent Google
SEO Google Search Console
Tag management Google Tag Manager (3)

Infrastructure

Network
AMAZON-02 - Amazon.com, Inc., US
AS16509 · US
DNS
Spaceship DNS
Authoritative nameserver
DNSSEC
Enabled
DNSKEY records published. DNS responses signed.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 7 Jun 2026 to 5 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
2 months
Registered Jun 2026 · Spaceship, Inc.

Email Security

✗
SPF Not published. Your domain can be spoofed in phishing emails.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
✗
DMARC Not published. Receivers fall back to permissive defaults.
?
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)

Performance How?

552 ms Server response
26% Faster than peers
432 ms Largest contentful paint
0.00 Cumulative layout shift
970 KB Page weight
2 Third-party domains
0 Console errors
0 Failed requests

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

AI Stance

No AI stance declared
✗ 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 (29 URLs)
✓ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/
✓ Terms of Service
/terms
✓ Consent manager: Google
88% unique
Mentions:
DPO Updated: June 8, 2026

Security Headers (6/6)

✓
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)

Build

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

Brand Colours

App Manifest

PDFMergely
display: standalone 1 icon
theme #070a13
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.