What powers optcl.co.in?
Last seen Aug 2026 · 26 technologies across 18 categories
Advertising
Google AdSense
since Nov 2021
Analytics
CDN
cdnjs
since Mar 2022
Cloudflare
since Mar 2022
Font scripts
Font Awesome
since Jan 2019
Hosting panels
Plesk
since Mar 2020
JavaScript Frameworks
JavaScript libraries
Isotope
since Mar 2022
Maps
Google Maps
since Dec 2022
Miscellaneous
Open Graph
since Sep 2022
SWFObject
since Jan 2019
Operating systems
CentOS
since Mar 2021
Programming languages
Security
HSTS
since Sep 2022
UI frameworks
Bootstrap
since Jan 2019
Video players
Vimeo
since Jun 2021
Web Frameworks
Web server extensions
Web servers
Nginx
since Aug 2023
Webmail
Zimbra
since Aug 2023
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 89% phone
- 10% desktop
- 1% tablet
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.89 / 10 · ranked #661,226 of all domains
48 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 175 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 4.0 MB · 101 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- OPTCL
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on CTRLS-AS-IN CtrlS (103.231.40.188)
- DNS: orderbox-dns.com
- Email: rediffmailpro.com
- Email security: SPF, DMARC reject
- SSL: DigiCert, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 2,131,726, 12 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| optcl.co.in | 15 |
| www.optcl.co.in | 15 |
| archive.optcl.co.in | 9 |
| careers.optcl.co.in | 8 |
| esamadhan.optcl.co.in | 8 |
| webmail.optcl.co.in | 3 |
Full technology history →
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Recent changes
- dropped jQuery CDN Mar 2026