MonoEsim

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MonoEsim ist ein unabhängiger Shop für Reise-eSIMs: Land wählen, online bezahlen, QR-Code scannen — mobiles Internet im Ausland ohne Roaming.

Added 10 Nov 2026 Analysed 10 Nov 2026 via

  • Contact page
  • No contact email

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Screenshot of MonoEsim

What we found

  1. We found no privacy policy or terms of service.
  2. DMARC only monitors (p=none), so email spoofing this domain is still delivered.
  3. Built with TanStack Start and React, the site is hosted on IONOS, with a domain registered 2 weeks before launch.
  4. No other launch we've crawled runs this exact stack.

Built with: 15 technologies · Indie stack

Embed this on your site

For light pages

Built with TanStack Start, Vercel
<a href="https://firstsited.com/launch/coagznnb/monoesim"><img src="https://firstsited.com/badge/coagznnb/stack.svg" alt="MonoEsim tech stack on FirstSited" height="28"></a>

For dark pages

Built with TanStack Start, Vercel
<a href="https://firstsited.com/launch/coagznnb/monoesim"><img src="https://firstsited.com/badge/coagznnb/stack.svg?theme=dark" alt="MonoEsim tech stack on FirstSited" height="28"></a>

How it fits together

Each technology runs on, or extends, the one it sits under.

Each technology links to its own page: which other new sites launched with it.

Site checks

Page basicsHow we check
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)
Crawl files
robots.txt
sitemap.xml 10 URLs
security.txt optional
llms.txt
ads.txt only for ad-funded sites
humans.txt optional
AI crawlers WelcomedHow we check
llms.txt published
No AI bots blocked in robots.txt
Content-Signal none declared
Link headers none advertised

Email

StateRecordStatusWhat it does
SPF ~all Soft-fail (~all), common and accepted Lists the servers allowed to send email for the domain.
DMARC p=none Monitoring only (p=none) Tells receivers what to do with email that fails SPF or DKIM.
DKIM Found Signs outgoing email. We check common selectors only, so a provider may use another.
MTA-STS Not deployed Stops email to the domain being downgraded to plain text in transit.
TLS-RPT Not configured Sends the owner reports of failed encrypted deliveries.

Hosting and network

Network AMAZON-02 - Amazon.com, Inc., US AS16509, US
DNS IONOS DNS authoritative nameservers
DNSSEC Not enabled DNS answers are unsigned
Certificate Let's Encrypt valid 28 Oct 2026 to 26 Jan 2027, as captured
Domain age 16 days registered Oct 2026, 1&1 Internet SE
Green hosting No record per The Green Web Foundation
Page build 1 JS file, 1 CSS file 1 third-party domain
App manifest MonoEsim — eSIM für Reisen display standalone; 2 icons
Brand colours

Storage: 2 items

Local storage 1
KeySizeSet by
monoesim79 B-
Session storage 1
KeySizeSet by
monoesim_me1 B-

Performance

MeasureThis siteReading
Server response 184 ms good, faster than 67% of sites
Largest contentful paint 740 ms good
Layout shift 0.02 good
Page weight 1.5 MB fair
Image weight 1014 KB fair
Images 34 21 larger than shown, 34 without width and height, 31 without alt text
Third-party domains 1
Console errors 1 worth a look
Failed requests 1 worth fixing
Broken requests to the site itself (1), worth fixing
  • 401 /api/v1/me

From a single automated render of the home page. A quick guide, not a substitute for Lighthouse or field data. How we measure

Notes

  1. Looks AI-built: few AI signals. How much the site looks AI-generated. It is a pattern match shown for interest, not a verdict.
    Which signals fired
    SignalPoints
    AI palette signals+5
    AI writing signals+5
  2. Performance comes from one render on 10 November 2026 and will vary between visits.

How we know

FirstSited records what new websites are built with, usually within a day of going live. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We checked this one in full: its tech stack, DNS, security headers and page basics. This page is what we saw on 10 November 2026; the live site may have changed since.

Every technology below links to its own page: which other new sites launched with it. Watch any of them and get every new site that uses it as it goes live, from £15 a month.

Spot a mistake? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.