OnixPDF

Free online PDF tools: PDF/A conversion, compression, merge, GDPR redaction, CAdES/PAdES signature verification. No sign-up required.

Productivity

Added May 22, 2026 · Last analysed May 22, 2026 · via · 60% unique tagline

Own this Launch?

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 22 May 2026; the live site may have changed since.

OnixPDF ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Worth fixing first: incomplete email security.

Launched on Product Hunt on May 22, 2026. The site is hosted on SiteGround, with a domain registered 1 week before launch. The crawl picked up 15 technologies on this site, covering email security, package cdn, servers, and analytics. The stack includes Bootstrap, cdnjs, and DNSSmartHost.

For context, it's on a stack we've seen on only 3 launches and tighter on security headers than most Product Hunt launches.

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

9.7

StackScope Score

Excellent

88/100 Launch Readiness

Launch ready

6/6 Security Headers

Strong

3/3* Legal

Complete*

2/2 Crawl files

Complete

Vibe Score 23 · 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 (15)

Infrastructure

DNS	SiteGround DNS
Hosting	SiteGround
Security	HSTS
Server	nginx
Server	PHP

Email security	DNSSmartHost
	MailSpamProtection

Build & Framework

CSS framework	Bootstrap
Font	Google Fonts
JavaScript library	Quill
Package CDN	cdnjs (2)
Package CDN	jsDelivr

Analytics & Marketing

Analytics	Matomo (2)
SEO	Google Search Console

Commerce & Payments

Payments	PayPal

Infrastructure

Network

AS15169 43515 · US

DNS

SiteGround DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

Green hosting

Green hosted

Host runs on renewable energy. Data from The Green Web Foundation.

SSL Certificate

Let's Encrypt

Valid 9 May 2026 to 7 Aug 2026

Certificate as captured in this snapshot, not a live check.

Domain Age

2 months

Registered May 2026 · Tucows Domains Inc.

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=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 (4)

Cookies (4)

Name	Lifetime	Detected as
pdfa_lang	12mo	-
PHPSESSID	1y	PHP
_pk_id.12.534a	1y	Matomo
_pk_ses.12.534a	< 1h	Matomo

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

⚠

Meta description is 163 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

- Semantic HTML (nav, main, article)

Vibe Score Breakdown How?

Signal	Points
AI palette signals	+5
AI writing signals	+3
AI CSS signals	+15

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

✗ 2 AI bots blocked in robots.txt

Content-Signal

? No directive declared

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✓ sitemap.xml (39 URLs)

✗ security.txt

✓ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

/privacy-en

✓ Terms of Service

/termini-en

? Consent manager not detected

Analytics set tracking cookies on our visit, with no opt-in step.

90% unique

Mentions:

GDPR Cookies Data Controller

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)

Performance

415ms response time

Faster than 43% of sites

6 third-party domains loaded

Build

✓ Code splitting

4 JS files

6 CSS files

6 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.