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CarrySizer

Check if your carry-on bag fits airline size limits. Dimensions, weight, personal item rules, and fees for 170+ airlines — free, fast, accurate.

Added June 27, 2026 · Last analysed June 27, 2026 · via

StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 27 June 2026; the live site may have changed since.

Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.

CarrySizer ships with the launch fundamentals in place, with a complete set of security headers, a thorough launch checklist, and clean crawl signals. What needs work: incomplete legal pages and no email security records.

Launched on Product Hunt on June 27, 2026. The site is hosted on Vercel, with a domain registered 1 week before launch. The crawl picked up 12 technologies on this site, covering analytics, seo, advertising, and CSS frameworks. The stack includes Next.js, React, and Tailwind CSS.

For context, it's running the same core stack as 14,963 other launches and tighter on security headers than most Product Hunt launches.

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

9.0
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
2/3 Legal
Partial
2/2 Crawl files
Complete
Vibe Score 10 · 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 (12)

Infrastructure
DNS Vercel DNS
Hosting Vercel (2)
Security HSTS
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js (5)
Analytics & Marketing
Advertising Google Ads
Analytics Google Analytics
Vercel Analytics medium
SEO Bing Webmaster
Google Search Console
Tag management Google Tag Manager

Infrastructure

Network
AS16509 · US
DNS
Vercel DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Google Trust Services
Valid 18 Jun 2026 to 16 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
2 months
Registered Jun 2026 · Name.com, 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 (0)

This site uses no client-side storage we could detect on page load.

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)
Page title is 64 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.

Performance How?

243 ms Server response
61% Faster than peers
340 ms Largest contentful paint
0.00 Cumulative layout shift
554 KB Page weight
1 Third-party domains
0 Console errors
0 Failed requests

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 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

Welcomes AI crawlers
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (4984 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy/
? Terms of Service not detected
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
90% unique

Security Headers (6/6)

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

Build

Code splitting
16 JS files
1 CSS files
1 Third-party domains

Brand Colours

App Manifest

CarrySizer — Carry-on rules for every airline
display: standalone 6 icons
theme #0b6fb8
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.