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xFill

One-click Chrome extension for intelligent, realistic form Automated form filler.

Productivity
Vietnam Estimated origin: Vietnam

Added April 28, 2026 · Last analysed April 28, 2026 · via · 60% unique tagline

Own this Launch?
Screenshot of xFill

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

xFill 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 and tracking cookies set before any opt-in.

Launched on Product Hunt on April 28, 2026. The site is hosted on Vercel, with a domain registered in 2023. Our crawler found 8 technologies on this site, covering analytics, CSS frameworks, frameworks, and hosting. The stack includes Next.js, React, and Tailwind CSS.

It's also running the same core stack as 10,661 other launches.

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

7.6
StackScope Score
Good
100/100 Launch Readiness
Launch ready
1/6 Security Headers
Poor
3/3* Legal
Complete*
2/2 Crawl files
Complete
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 (8)

Infrastructure
Hosting Vercel (3)
Security HSTS (2)
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js (3)
Video YouTube
Analytics & Marketing
Analytics Google Analytics (4)
Tag management Google Tag Manager

Infrastructure

Network
AMAZON-02 - Amazon.com, Inc., US
AS16509 · US
DNSSEC
Enabled
DNSKEY records published. DNS responses signed.
SSL Certificate
Let's Encrypt
Valid 18 Apr 2026 to 17 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
3.4 years
Registered Mar 2023 · Squarespace Domains II LLC

Email Security

✓
SPF ~all (via apex thangved.com) Soft-fail (~all). Common and accepted.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
✓
DMARC p=reject (via apex thangved.com) 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 (2)

Cookies (2)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_QDPP92WPET 1y Google Analytics

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
✓ Semantic HTML (nav, main, article)

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 (4 URLs)
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ 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)

✗
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

907ms response time
Faster than 13% of sites
3 third-party domains loaded

Build

✓ Code splitting
11 JS files
1 CSS files
3 Third-party domains

Brand Colours

App Manifest

xFill
display: standalone 3 icons
theme #e76f51
utilities productivity
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.