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Download Time Calculator

Free online download time calculator. Estimate how long it will take to download or upload files based on your internet speed.

Added April 26, 2026 · Last analysed April 26, 2026 · via · 57% unique tagline

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Screenshot of Download Time Calculator

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 26 April 2026; the live site may have changed since.

Download Time Calculator ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. Worth fixing first: missing several security headers and no email security records.

Launched on Product Hunt on April 26, 2026. The site is served through Cloudflare, with a domain registered 1 week before launch. We've detected 11 technologies on this site, covering advertising, analytics, CDN, and consent tooling. The stack includes Google Funding Choices, React, and Tailwind CSS.

It's running the same core stack as 290 other launches.

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

8.2
StackScope Score
Excellent
88/100 Launch Readiness
Launch ready
3/6 Security Headers
Decent
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 20 · 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 (11)

Infrastructure
CDN Cloudflare (3)
DNS Cloudflare DNS
Protocol HTTP/3 (2)
Build & Framework
CSS framework Tailwind CSS
Framework React
UI library shadcn/ui
Analytics & Marketing
Advertising Google Ads
Google AdSense (3)
Analytics Google Analytics (4)
Consent Google Funding Choices
Tag management Google Tag Manager

Infrastructure

Network
CLOUDFLARENET - Cloudflare, Inc., US
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Google Trust Services
Valid 19 Apr 2026 to 18 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
3 months
Registered Apr 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 (3)

Cookies (2)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_N9MCLLMKQR 1y Google Analytics
Local storage (1)
KeySizeDetected as
google_auto_fc_cmp_setting 3 B Google Funding Choices

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
✓ Semantic HTML (nav, main, article)
⚠
Page title is 73 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
- Favicon present

Vibe Score Breakdown How?

SignalPoints
AI CSS signals +10
AI palette signals +5
AI writing signals +5

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

Blocks AI crawlers
✗ llms.txt published
✗ 9 AI bots blocked in robots.txt
Content-Signal
✗ ai-train = no
✓ search = yes
? ai-input (not declared)
Link headers
? None advertised

Well-Known Files

✓ robots.txt
✓ sitemap.xml (48 URLs)
✗ security.txt
✗ llms.txt
✓ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/privacy-policy
✓ Terms of Service
/terms-of-service
✓ Consent manager: Google Funding Choices
88% unique
Mentions:
Cookies

Security Headers (3/6)

✓
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

380ms response time
Faster than 47% of sites
3 third-party domains loaded

Build

✓ Code splitting
16 JS files
1 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.