What powers 
tzero.com?
Last seen Sep 2026 · 59 technologies across 27 categories
Affiliate programs
Analytics
CDN
CMS
Comment systems
CRM
Databases
Development
Font scripts
IaaS
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Performance
Programming languages
RUM
Security
Segmentation
Tag managers
UI frameworks
Web frameworks
Webmail
WordPress plugins
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 58% desktop
- 42% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.98 / 10 · ranked #247,899 of all domains
214 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Vercel
- Weight: 6.8 MB · 111 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Amazon Web Services (216.150.1.1)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 498,404, 10 hosts
- Verified with: Apple Business, Atlassian, Cisco Duo, Google, Meta Business, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| tzero.com | 28 |
| www.tzero.com | 25 |
| platform.tzero.com | 22 |
| secondary.tzero.com | 22 |
| prim.tzero.com | 18 |
| prim.buybuybaby.tzero.com | 16 |
| prim.overstock.tzero.com | 16 |
| ats.tzero.com | 13 |
Full technology history →
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Recent changes
- dropped Sanity Feb 2026
- dropped Font Awesome Jan 2026
- dropped LottieFiles Jan 2026
- dropped Matomo Analytics Jan 2026
- dropped RankMath SEO Dec 2025