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PDFAir

This launch may no longer be active. Its site did not respond when we last checked on August 14, 2026.

27+ free PDF tools. No uploads. 100% private. Scan, OCR, fill forms, merge, compress & more.

Productivity

Added April 4, 2026 · Last analysed April 10, 2026 · via

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 10 April 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.

PDFAir has the basics covered well, with complete legal pages and clean crawl signals. Visible gaps: missing several security headers and no email security records.

Launched on Product Hunt on April 4, 2026. The site is hosted on Vercel. Our crawler found 5 technologies on this site, covering web fonts, hosting, icon font, and package cdn. The stack includes cdnjs, Font Awesome, and Google Fonts.

It's also on one of the most common stacks we track, shared by 4,268 launches.

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

7.5
StackScope Score
Good
78/100 Launch Readiness
Well prepared
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 3 · 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 (5)

Infrastructure
Hosting Vercel (2)
Security HSTS (2)
Build & Framework
Font Google Fonts
Icon font Font Awesome
Package CDN cdnjs

Infrastructure

Network
AS16509 · US
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.

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.

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description) (partial) missing og:image
Twitter card meta tags
Canonical URL declared
Responsive viewport meta tag
Semantic HTML (nav, main, article)
Meta description is 183 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.
- Favicon present

Vibe Score Breakdown How?

SignalPoints
AI writing signals +3

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

No AI stance declared
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (24 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/
Terms of Service
/
92% unique

Security Headers (2/6)

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

Performance

380ms response time
Faster than 43% of sites
3 third-party domains loaded

Build

0 JS files
2 CSS files
3 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.