What powers spreadsheet.dev?
Last seen Sep 2026 · 8 technologies across 8 categories
Analytics
Plausible
since Feb 2021
CDN
Cloudflare
since Oct 2023
IaaS
Google Cloud
since Apr 2022
JavaScript libraries
Highlight.js
since Aug 2024
Performance
Google Cloud Trace
since Apr 2022
Security
HSTS
since Nov 2022
UI frameworks
Tailwind CSS
since Apr 2022
Webmail
Google Workspace
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 87% desktop
- 13% phone
Indonesia
United Kingdom
United States
Philippines
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.12 / 10 · ranked #1,386,173 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 1.0 MB · 14 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Google (216.239.32.21, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 6,724,039, 3 hosts
- Verified with: Google
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted