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Global rank
AI visibility
SEO health
Visits
per month, estimated
Keywords
ranking in Google
Organic share
of all search traffic
LLMS.txt
lines AI engines can read
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Building this domain's report…
Global rank
AI visibility
SEO health
Visits
per month, estimated
Keywords
ranking in Google
Organic share
of all search traffic
LLMS.txt
lines AI engines can read
Global rank: Worldwide · 2026-08
#16,217
AI visibility: Grade A
89
SEO health: Latest audit
91
Visits
0
per month, estimated
Keywords
0
ranking in Google
Organic share
0%
of all search traffic
LLMS.txt
Published
117 lines AI engines can read
You're seeing the free preview of zer0day.to
A snapshot of how zer0day.to performs in search and in AI answers — every number below is one we hold, not a guess.
What this company does
Zer0day began when a handful of security researchers grew frustrated with slow or nonexistent patches for serious flaws. They started hunting zero-day vulnerabilities themselves and then worked directly with vendors to push fixes into the wild quickly. The team has expanded over time yet kept its original hands-on style that first earned attention in the field. Clients are mostly mid-size tech companies and governmen…
Our read on the site
Significant improvements needed. 1 high-priority issue.
Month by month, how much search traffic this domain earns — how much of it is free, and whether it is winning or losing ground.
Monthly visits
0
Latest estimate
Change
No monthly history yet
It starts building from the first scan
Organic visits
0
0% of all traffic
Paid visits
Whether AI engines can read this brand, understand it, and cite it when someone asks about its category.
Grade A
Scored from this domain's own data — llms.txt, profile completeness, technical health, crawlability and structured data.
The file AI engines read to understand a business. This is what it currently tells them about this one.
Status
Published
AI engines can read it
Lines
117
In the file
Size
6.9K
Characters
Sections
12
How the site itself performs — speed, accessibility and the technical basics both search crawlers and AI crawlers depend on.
Overall
Excellent
The websites this domain competes with for the same searches and the same AI answers.
The business behind the domain — what it does, where it is, and who runs it.
Zer0day began when a handful of security researchers grew frustrated with slow or nonexistent patches for serious flaws. They started hunting zero-day vulnerabilities themselves and then worked directly with vendors to push fixes into the wild quickly. The team has expanded over time yet kept its original hands-on style that first earned attention in the field. Clients are mostly mid-size tech companies and governmen…
Which markets this brand actually serves, and where the web links to it from.
We only measure visitor geography for domains whose analytics are connected to us. For everyone else this is read live from the web and shown as an estimate — never mixed in with the measured numbers.
No market breakdown available for this brand.
Measured. The country each linking site is hosted in — a real signal of which regions know this brand.
No backlink sample for this domain yet.
Backlink Analytics collects one on its first run.
The searches this domain already ranks for, and how much traffic they bring it.
Ranking keywords
0
Found in Google for this domain
Visits they bring
0
Estimated organic visits a month
No ranked-keyword data cached for this domain yet.
Ranked Keywords pulls the full list on its first run.
Who vouches for this domain. Strong, varied links are still the clearest signal of authority — to search engines and to AI engines that cite sources.
We haven't run a backlink crawl for zer0day.to yet, so there are no link counts to show. Backlink Analytics builds the profile on its first run and it appears here after that.
—
links on file
Neighbours of #16,217 in our worldwide ranking — each with its own report.
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0
No paid search detected
0%
0%
We don't hold a month-by-month history for this domain yet.
The traffic dashboard builds one from the first scan onwards.
Present
6/8 core fields
100/100
robots ✓ · sitemap ✓
Not detected
Fix these first
Updated Aug 20, 2026
# Zer0day ## About Zer0day began when a handful of security researchers grew frustrated with slow or nonexistent patches for serious flaws. They started hunting zero-day vulnerabilities themselves and then worked directly with vendors to push fixes into the wild quickly. The team has expanded over time yet kept its original hands-on style that first earned attention in the field. Clients are mostly mid-size tech companies and government contractors who want advance notice on threats that standard feeds overlook. The firm runs private bug bounty programs and delivers detailed research reports instead of packaged software products. Analysts devote long hours to reverse engineering binaries and creating custom fuzzers aimed at obscure protocols. Revenue comes primarily from annual retainers and targeted research contracts rather than recurring SaaS fees. Founders personally review every significant discovery before release. The company maintains a deliberately low public profile and only appears at conferences when presenting its own findings. Headquarters is a modest office outside Tallinn with several remote researchers working across Europe. No external funding rounds have been disclosed and the business has been profitable since its third year. Headcount sits near forty with a strong preference for staff who have previously shipped real exploits. Quiet licensing deals exist w
Sections in the file
Areas of work
Keywords it claims
Technologies
Products it tells AI about
SEO
Excellent
Performance
Accessibility
Excellent
11 more recommendations, with the exact changes and the pages they apply to, are in the full report.
Audience it targets
Europe
Company type
Private