What powers marbleheadhistory.org?
Last seen Sep 2026 · 15 technologies across 10 categories
Caching
CMS
Databases
JavaScript libraries
Miscellaneous
Performance
Programming languages
Web servers
WordPress plugins
WordPress themes
AI Crawlers
Blocks 16 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
Search and AI assistants
- Amazonbot Blocked
- OAI-SearchBot Blocked
- PerplexityBot Blocked
- PetalBot Blocked
- YouBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 17 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
16 of 33 AI crawlers blocked
Audience
- 68% desktop
- 32% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.90 / 10 · ranked #3,869,819 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| CLS | 0 |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- Weight: 0.4 MB · 20 requests
- WordPress theme: mantra (child: mantra-child) · all themes
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on DF-TUKWILA01 (173.225.21.50)
- DNS: ultranameservers.com
- Email: marbleheadhistory.org
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 3,320,387, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected WP Rocket Aug 2026
- detected Redis Apr 2026
- detected Redis Object Cache Apr 2026