ZeroTool

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Fast, 100% private in-browser utilities for PDFs, images, code, and financial calculations. Zero server uploads. Runs directly in browser RAM.

Productivity Added 8 Nov 2026 Analysed 8 Nov 2026 via

Own this site?

Screenshot of ZeroTool

What we found

  1. There are no SPF or DMARC records, so anyone can send email that claims to come from this domain.
  2. It sends five of the six security headers we check; the missing one is Permissions-Policy.
  3. The site is hosted on Hostinger.
  4. It welcomes AI crawlers and publishes an llms.txt.

Built with: 9 technologies

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)
Page title is 82 characters Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
Crawl files
robots.txt
sitemap.xml 47 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 Not published Lists the servers allowed to send email for the domain.
DMARC Not published Tells receivers what to do with email that fails SPF or DKIM.
DKIM Not found at common selectors 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.

Without SPF and DMARC, anyone can send email that claims to come from this domain. Those two are the records to add first.

Hosting and network

Network AS-HOSTINGER - Hostinger International Limited, CY AS47583, DE
DNS Hostinger DNS authoritative nameservers
DNSSEC Not enabled DNS answers are unsigned
Certificate Let's Encrypt valid 30 Oct 2026 to 28 Jan 2027, as captured
Green hosting Yes per The Green Web Foundation
Page build 0 JS files, 3 CSS files 5 third-party domains
App manifest ZeroTool - All Tools One Place display standalone; 2 icons; utilities, productivity, developer tools, business
Brand colours

Storage: 1 item

Local storage 1
KeySizeSet by
zerotool_site_lang2 B-

Performance

MeasureThis siteReading
Server response 234 ms good, faster than 58% of sites
Largest contentful paint 1,092 ms good
Layout shift 0.05 good
Page weight 937 KB light
Image weight 143 KB light
Images 9 6 larger than shown, 6 without width and height
Third-party domains 5
Console errors 0 none
Failed requests 0 none

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: many 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 onboarding signals+5
    AI palette signals+5
    AI writing signals+5
    AI code-structure signals+5
    Stock-image social proof+15
  2. Performance comes from one render on 8 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 8 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.