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IP Calculator / IP Subnetting

Fast Subnetting & IP Range Calculation for Engineers

Germany Estimated origin: Germany

Added August 25, 2026 · Last analysed August 25, 2026 · via

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Screenshot of IP Calculator / IP Subnetting

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 25 August 2026; the live site may have changed since.

IP Calculator / IP Subnetting still has work before launch. Visible gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Product Hunt on August 25, 2026. The site is hosted on Hetzner Online GmbH in Germany. The crawl picked up 3 technologies on this site, covering DNS providers, security, and servers. The stack includes Apache, Hetzner DNS, and HSTS.

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

1.6
StackScope Score
Poor
23/100 Launch Readiness
Needs work
2/6 Security Headers
Weak
0/3 Legal
Missing
0/2 Crawl files
Missing
100/100 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 (3)

Infrastructure
DNS Hetzner DNS
Security HSTS
Server Apache

Infrastructure

Network
HETZNER-AS - Hetzner Online GmbH, DE
AS24940 · DE
DNS
Hetzner 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 10 Jul 2026 to 8 Oct 2026
Certificate as captured in this snapshot, not a live check.

Email Security

✓
SPF -all Strict (-all). Strong.
?
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 (partial) missing meta description
✓ Favicon present
- Open Graph tags (title, image, description)
- Responsive viewport meta tag
- Canonical URL declared
- Twitter card meta tags
- Semantic HTML (nav, main, article)

Performance How?

326 ms Server response
48% Faster than peers
264 ms Largest contentful paint
0.00 Cumulative layout shift
11 KB Page weight
8 KB Image weight
1 Third-party domains
0 Console errors
0 Failed requests

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

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
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

? Privacy Policy not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (2/6)

✗
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

0 JS files
0 CSS files
1 Third-party domains

Brand Colours

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