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US Tax Calculator 2026

Free trilingual (EN/ZH/ES) 2026 federal tax calculator with official IRS brackets, FICA, self-employment tax, Child Tax Credit, and 50-state comparison. 免费英中西三语 2026 联邦税计算器:最新税率、FICA、自雇税、儿童税收抵免与州税对比。

Finance

Added July 20, 2026 · Last analysed July 20, 2026 · via · 50% 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 20 July 2026; the live site may have changed since.

US Tax Calculator 2026 is partway there, with a thorough launch checklist and clean crawl signals. What needs work: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Product Hunt on July 20, 2026. The site is served through Cloudflare, with a domain registered 1 day before launch. The crawl picked up 11 technologies on this site, covering advertising, analytics, CDN, and consent tooling. The stack includes Google Funding Choices, Chart.js, and Cloudflare.

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

Vibe Score 70 · Many 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
DNS Cloudflare DNS
Protocol HTTP/3
Email
Email forwarding Cloudflare Email Routing (2)
Build & Framework
JavaScript library Chart.js medium
Package CDN jsDelivr
Analytics & Marketing
Advertising Google Ads
Google AdSense (2)
Analytics Cloudflare Web Analytics (2)
Consent Google Funding Choices
SEO Google Search Console

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 19 Jul 2026 to 17 Oct 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
3 days
Registered Jul 2026 · Cloudflare, Inc.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
?
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 (1)

Cookies (1)
NameLifetimeDetected as
FCCDCF 1y 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
Favicon present
Semantic HTML (nav, main, article)
Meta description is 265 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.

Performance How?

161 ms Server response
79% Faster than peers
716 ms Largest contentful paint
0.25 Cumulative layout shift
682 KB Page weight
1 KB Image weight
5 Third-party domains
0 Console errors
0 Failed requests

1 images: 1 oversized, 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.

Vibe Score Breakdown How?

SignalPoints
AI writing signals +5
AI iconography signals +5
AI code-structure signals +5
AI asset signals +10
Unfilled template placeholders +10
AI CSS signals +15

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 (23 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
Consent manager: Google Funding Choices
Detection works best on English language sites.

Security Headers (2/6)

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

Build

Code splitting
6 JS files
0 CSS files
5 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.