What powers 
eiffel.com?
Last seen Sep 2026 · 26 technologies across 18 categories
Analytics
Caching
CDN
CMS
Databases
Font scripts
Hosting
JavaScript libraries
Live chat
Miscellaneous
PaaS
Page builders
Programming languages
Security
Web servers
Widgets
WordPress plugins
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 |
|---|---|---|
| programming by contract | #6 | 4 |
| design by contract | #19 | 1 |
| concurrent languages | #66 | 0 |
| concurrency software | #66 | 0 |
| contract programming | #89 | 0 |
| contract programming | #33 | 0 |
| void development | #57 | 0 |
| parallel concurrent programming | #83 | 0 |
| programming by contract java | #89 | 0 |
| programming by contract | #50 | 0 |
| how do you spell eiffel | #66 | 0 |
| design by contract java | #52 | 0 |
| design by contract in java | #74 | 0 |
| eiffel services llc | #36 | 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
5.79 / 10 · ranked #129,093 of all domains
289 referring domains · OpenPageRank
Search traffic
5 est. monthly organic visits (US)
14 keywords in Google's top 30
Page
- Language: English (United States)
- Weight: 0.5 MB · 58 requests
- WordPress theme: flatsome (child: flatsome-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Registered Nov 1988 (37 years) via GoDaddy.com, LLC, renews Nov 2029
- Hosted on Linode (Akamai) (104.237.157.162, IPv6)
- DNS: GoDaddy DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 34,777, 25 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 |
|---|---|
| www.eiffel.com | 23 |
| account.eiffel.com | 7 |
| archive.eiffel.com | 6 |
Full technology history →
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Recent changes
- dropped Animate.css Sep 2026
- dropped Font Awesome Sep 2026
- dropped jQuery UI Sep 2026
- dropped OWL Carousel Sep 2026
- dropped prettyPhoto Sep 2026
- dropped reCAPTCHA Sep 2026
- dropped Slider Revolution Sep 2026
- dropped SweetAlert Sep 2026
- dropped Underscore.js Sep 2026
- dropped wpBakery Sep 2026
- dropped YouTube Sep 2026
- detected Cloudflare Turnstile Aug 2026
- detected Kadence WP Blocks Aug 2026
- detected Smart Slider 3 Aug 2026
- detected W3 Total Cache Aug 2026
- detected WordPress Block Editor Aug 2026
- detected Crisp Live Chat Jun 2026
- detected Twitter Emoji (Twemoji) Feb 2026