What powers 
learnopencv.com?
Last seen Sep 2026 · 51 technologies across 25 categories
Analytics
Caching
CDN
CMS
Databases
Ecommerce
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
LMS
Miscellaneous
Performance
Programming languages
Rich text editors
Security
Tag managers
UI frameworks
Video players
Web frameworks
Webmail
Widgets
WordPress plugins
WordPress themes
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
- ai.txt not found
- 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
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| intersection over union | #9 | 220 |
| histograms of oriented gradients | #3 | 220 |
| iterative closest point | #2 | 160 |
| iterative closest point | #2 | 160 |
| ddpm | #4 | 160 |
| otsu thresholding | #2 | 140 |
| opencv | #13 | 110 |
| non maximum suppression | #2 | 59 |
| crop image opencv | #2 | 52 |
| histogram of oriented gradients | #2 | 52 |
| vggt | #8 | 47 |
| opencv crop image | #2 | 47 |
| convolutional neural network architecture | #6 | 44 |
| convolutional neural network architecture | #6 | 44 |
| tracking object opencv | #1 | 43 |
| opencv object tracking | #1 | 43 |
| otsu method | #2 | 43 |
| handwritten text recognition python | #2 | 42 |
| hu moment | #2 | 42 |
| opencv | #45 | 38 |
| torchvision models | #4 | 32 |
| histogram of gradients | #3 | 31 |
| control net | #14 | 30 |
| what is exif information | #5 | 28 |
| contour detection | #1 | 27 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 77% desktop
- 22% phone
- 1% tablet
India
Italy
Germany
Canada
Japan
Brazil
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
6.08 / 10 · ranked #104,250 of all domains
333 referring domains · OpenPageRank
Search traffic
5,100 est. monthly organic visits (US)
3,806 keywords in Google's top 30
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 2.7 MB · 62 requests
- WordPress theme: hello-elementor · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- LearnOpenCV
- Industry: Education (declares
EducationalOrganization) - Profiles: Facebook, X, Instagram, YouTube, LinkedIn
From the homepage's own structured data (Sep 2026).
Infrastructure
- Registered Sep 2014 (12 years) via GoDaddy.com, LLC, renews Sep 2027
- Hosted on Cloudflare (104.26.0.27, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: no SPF record, DMARC monitor only, CAA
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 555,941, 4 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| courses.learnopencv.com | 33 |
| learnopencv.com | 17 |
| www.learnopencv.com | 13 |
Full technology history →
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Recent changes
- detected Cloudflare Turnstile Aug 2026
- dropped Cloudflare Rocket Loader Jun 2026
- dropped Genesis blocks May 2026
- dropped TablePress May 2026
- dropped WP Engine May 2026
- dropped WP Rocket May 2026
- detected Litespeed Cache Apr 2026
- dropped WordPress Multisite Apr 2026
- detected Cloudflare Browser Insights Mar 2026
- detected Cloudflare Rocket Loader Mar 2026
- dropped Genesis theme Dec 2025
- dropped LazySizes Dec 2025
- dropped NitroPack Dec 2025
- dropped Cookiebot Nov 2025
- detected Hello Elementor Nov 2025
- dropped jQuery Migrate Nov 2025
- dropped jQuery UI Nov 2025
- dropped Microsoft Advertising Nov 2025
- detected Plyr Nov 2025
- dropped React Nov 2025
- detected TablePress Nov 2025
- dropped Underscore.js Nov 2025
- dropped VWO Nov 2025
- detected WordPress Multisite Nov 2025
- detected WP Rocket Nov 2025
- dropped YouTube Nov 2025