What powers 
sign.plus?
Last seen Sep 2026 · 36 technologies across 18 categories
Analytics
CDN
Cookie compliance
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
Page builders
Payment processors
Performance
Search engines
Security
Tag managers
Translation
UI frameworks
Widgets
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Oct 2026.
Training crawlers
- AI2Bot Allowed
- Applebot-Extended Allowed
- Bytespider Allowed
- CCBot Allowed
- ClaudeBot Allowed
- cohere-training-data-crawler Allowed
- Diffbot Allowed
- FacebookBot Allowed
- Google-Extended Allowed
- GPTBot Allowed
- meta-externalagent Allowed
Search and AI assistants
- Amazonbot Allowed
- Applebot Allowed
- Claude-SearchBot Allowed
- DuckAssistBot Allowed
- OAI-SearchBot Allowed
- PerplexityBot Allowed
User-request fetchers
- ChatGPT-User Allowed
- Claude-User Allowed
- Perplexity-User Allowed
The other 13 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 57% phone
- 41% desktop
- 2% tablet
United States
Germany
France
India
Italy
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.17 / 10 · ranked #467,227 of all domains
40 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 1.2 MB · 75 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (198.202.211.1)
- DNS: Cloudflare DNS
- Email: sign.plus
- Email security: SPF, DMARC reject, CAA, BIMI
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 114,118, 6 hosts
- Verified with: Google, Atlassian Statuspage, Yahoo
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| app.sign.plus | 23 |
| admin.sign.plus | 20 |
| www.sign.plus | 17 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Post Affiliate Pro May 2026
- dropped Hotjar Mar 2026
- dropped core-js Jan 2026
- detected Priority Hints Nov 2025