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Printivu

Free printable worksheets you can customize: word searches, math facts, handwriting practice, mazes and sudoku. Live preview, instant PDF, answer keys included.

Education

Added July 11, 2026 · Last analysed July 11, 2026 · via PeerPush · 71% 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 11 July 2026; the live site may have changed since.

Printivu has the basics covered well, with complete legal pages, a thorough launch checklist, and well-configured email security. What needs work: missing several security headers.

Launched on PeerPush on July 11, 2026. The site is served through Cloudflare, with a domain registered 4 weeks before launch. Our crawler found 15 technologies on this site, covering analytics, ui library, CDN, and CSS frameworks. The stack includes Next.js, React, and Tailwind CSS.

It's also running the same core stack as 3,607 other launches.

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

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 (15)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Protocol HTTP/3
Security HSTS
Email
Email forwarding Cloudflare Email Routing (2)
Transactional email Cloudflare Email
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js (4)
UI library Lucide Icons
shadcn/ui
Analytics & Marketing
Analytics Cloudflare Web Analytics (3)
Yandex Metrica (5)
SEO Google Search Console
Tag management Google Tag Manager medium

Infrastructure

Network
AS13335 · US
DNS
Cloudflare 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
Google Trust Services
Valid 11 Jun 2026 to 9 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 month
Registered Jun 2026 · Cloudflare, Inc.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
DMARC p=reject Reject (strict). Strong.
?
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 (14)

Cookies (7)
NameLifetimeDetected as
bh 1y -
sync_cookie_csrf < 1h -
sync_cookie_csrf_secondary < 1h -
_ym_d 12mo Yandex Metrica
_ym_isad 20h Yandex Metrica
_ym_uid 12mo Yandex Metrica
_ym_visorc < 1h Yandex Metrica
Local storage (6)
KeySizeDetected as
_ym109781073:0_reqNum 1 B Yandex Metrica
_ym109781073_lsid 12 B Yandex Metrica
_ym_retryReqs 2 B Yandex Metrica
_ym_synced 16 B Yandex Metrica
_ym_uid 21 B Yandex Metrica
_ym_wv2rf:109781073:0 1 B Yandex Metrica
Session storage (1)
KeySizeDetected as
__ym_tab_guid 36 B Yandex Metrica

Readiness Breakdown How?

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

Performance How?

164 ms Server response
78% Faster than peers
452 ms Largest contentful paint
0.00 Cumulative layout shift
761 KB Page weight
5 KB Image weight
2 Third-party domains
1 Console errors
1 Failed requests

4 images: 1 oversized, 4 without width/height, 2 missing alt text

Broken first-party requests (1), worth fixing
  • 404 /cdn-cgi/rum?

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
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (210 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
92% unique

Security Headers (1/6)

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

Build

Code splitting
14 JS files
1 CSS files
2 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.