What powers ralfj.de?
Last seen Sep 2026 · 2 technologies across 2 categories
Security
Web servers
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| pointers | #19 | 60 |
| pointers | #73 | 47 |
| ralf | #17 | 10 |
| panic rust | #5 | 2 |
| panic rust | #5 | 2 |
| golang memory safety | #5 | 2 |
| rust online | #42 | 1 |
| rust mutexguard | #7 | 1 |
| mutex vs rwlock | #5 | 1 |
| git mirror repository | #14 | 1 |
| git clone mirror | #39 | 1 |
| how many byte in int | #75 | 1 |
| you need to be better | #95 | 0 |
| c language byte | #29 | 0 |
| bytes of memory | #93 | 0 |
| byte vs integer | #45 | 0 |
| byte system | #79 | 0 |
| type layouts | #86 | 0 |
| warning comparison between pointer and integer | #25 | 0 |
| welcome to rust | #34 | 0 |
| what are invariants in programming | #30 | 0 |
| what is a memory safe language | #70 | 0 |
| rust rs | #35 | 0 |
| rust panic abort | #27 | 0 |
| rust panic | #9 | 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.
AI Crawlers
No AI crawlers blocked
Open Page Rank
5.02 / 10 · ranked #244,185 of all domains
110 referring domains · OpenPageRank
Search traffic
130 est. monthly organic visits (US)
61 keywords in Google's top 30
Page
- Language: English
- Weight: 0.0 MB · 3 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on ACTIVE-SERVERS active-servers.com (109.230.236.95, IPv6)
- DNS: inwx.de
- Email: ralfj.de
- Email security: SPF (neutral), no DMARC record, DNSSEC signed, CAA
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 474,774, 5 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| research.ralfj.de | 2 |
| www.ralfj.de | 2 |