What powers ctfd.io?
Last seen Jun 2026 · 31 technologies across 13 categories
Analytics
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since Jan 2023
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Documentation
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Miscellaneous
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since Sep 2022
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since Sep 2022
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| capture the flag platform | #1 | 15 |
| capture the flag online | #8 | 8 |
| create a flag | #97 | 8 |
| what is ctf | #10 | 8 |
| ctfs | #83 | 5 |
| capture the flag security | #18 | 3 |
| ctfd meaning | #9 | 3 |
| capture the flag cyber security | #35 | 2 |
| free flag maker | #96 | 2 |
| online capture the flag | #14 | 1 |
| flags for capture the flag | #41 | 1 |
| ctfd meaning | #69 | 1 |
| ctfd meaning | #57 | 1 |
| ctfd meaning | #51 | 1 |
| ctf tournament | #8 | 1 |
| ctf tool | #11 | 1 |
| ctf cyber security | #21 | 1 |
| custom scoreboard | #59 | 1 |
| cyber capture the flag | #20 | 1 |
| cyberrange | #96 | 1 |
| cyberpower power panel | #66 | 1 |
| which bootcamp is the easiest | #43 | 0 |
| #83 | 0 | |
| blue io | #77 | 0 |
| bugcrowd logo | #78 | 0 |
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.
Audience
- 77% desktop
- 23% phone
India
France
Indonesia
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.51 / 10 · ranked #74,878 of all domains
230 referring domains · OpenPageRank
Search traffic
66 est. monthly organic visits (US)
124 keywords in Google's top 30
Core Web Vitals
| LCP | 1.2 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Cloudflare
- Weight: 7.0 MB · 45 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| cloud.ctfd.io | 15 |
| ctfd.io | 15 |
| iitmpravartak.ctfd.io | 13 |
| intent.ctfd.io | 13 |
| mhsctf2023.ctfd.io | 10 |
| bugcrowd.ctfd.io | 9 |
| chv-ctf.ctfd.io | 9 |
| docs.ctfd.io | 9 |
| flare-on10.ctfd.io | 9 |
| flare-on11.ctfd.io | 9 |
| flare-on12.ctfd.io | 9 |
| flare-on9.ctfd.io | 9 |
| iitbtrustlab.ctfd.io | 9 |
| jerseyctf.ctfd.io | 9 |
| noisefest.ctfd.io | 9 |
| osmosis.ctfd.io | 9 |
| technovalley.ctfd.io | 9 |
| 5n4ck3y.ctfd.io | 8 |
| bhv.ctfd.io | 8 |
| blackperldfir.ctfd.io | 8 |
| codebreakers.ctfd.io | 8 |
| cyberchampion.ctfd.io | 8 |
| cyctf.ctfd.io | 8 |
| cyctf23.ctfd.io | 8 |