What powers 
opticaljournal.com?
Last seen Sep 2026 · 24 technologies across 14 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
WordPress plugins
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 found
- llms-full.txt found
- ai.txt not checked
- Sep 2026 bytespider removed from robots.txt
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
- Sep 2026 claudebot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Audience
- 55% phone
- 45% desktop
India
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.44 / 10 · ranked #955,901 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 2.5 MB · 136 requests
- WordPress theme: newspaper · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.21.8.242, IPv6)
- Email: SiteGround Email
- Email security: no SPF record, no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 1,200,395, 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 MonsterInsights Aug 2026
- dropped MonsterInsights Jul 2026
- detected SiteGround Jun 2026
- dropped Font Awesome May 2026
- dropped Ultimate GDPR & CCPA May 2026
- dropped Nginx Apr 2026
- dropped SiteGround Apr 2026
- detected Cloudflare Mar 2026
- detected Cloudflare Browser Insights Mar 2026
- detected HSTS Mar 2026
- detected HTTP/3 Mar 2026
- detected Twitter Emoji (Twemoji) Dec 2025