What powers bas.bg?
Last seen Aug 2026 · 166 technologies across 42 categories
Accessibility
Advertising
Analytics
Authentication
Caching
CDN
CMS
Cookie compliance
Databases
DMS
Ecommerce
Editors
Font Scripts
Hosting
Hosting panels
Issue trackers
JavaScript Frameworks
JavaScript graphics
JavaScript libraries
Maps
Marketing automation
Miscellaneous
Mobile frameworks
Operating systems
Page builders
Performance
Photo galleries
Programming languages
Retargeting
Search engines
Security
Static site generator
Tag managers
UI frameworks
Video players
Web frameworks
Web server extensions
Web Servers
Webmail
Widgets
WordPress plugins
WordPress themes
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
Training crawlers
- CCBot Blocked
- ClaudeBot Blocked
- GPTBot Blocked
Search and AI assistants
- Amazonbot Blocked
- PetalBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 27 AI crawlers we track are not mentioned and are blocked by the catch-all rule (User-agent: *).
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 ccbot added to robots.txt
- Sep 2026 oai-searchbot removed from robots.txt
- Sep 2026 chatgpt-user added to robots.txt
- Sep 2026 claudebot added to robots.txt
- Sep 2026 *: Blocked (was Allowed)
- Aug 2026 amazonbot added to robots.txt
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| bas | #91 | 420 |
| bulgarian academy of sciences | #1 | 8 |
| john atanasoff | #30 | 3 |
| bas solar | #11 | 2 |
| fascist bulgaria | #5 | 2 |
| bas history | #42 | 1 |
| bulgarian history | #59 | 1 |
| conference natural language processing | #93 | 1 |
| ul 15 | #41 | 1 |
| b g | #64 | 1 |
| pythagoras prize | #10 | 1 |
| pythagoras award | #9 | 1 |
| institute of sociology | #53 | 1 |
| kontsevich | #64 | 1 |
| macedonia language | #58 | 1 |
| maxim kontsevich | #51 | 1 |
| bas news | #29 | 0 |
| who invented digital computer | #36 | 0 |
| women's studies quarterly | #93 | 0 |
| yuri tschinkel | #66 | 0 |
| yuri tschinkel | #62 | 0 |
| bulgarian tree | #80 | 0 |
| bulgarian experiment | #94 | 0 |
| bulgarian dictionary | #93 | 0 |
| bulgaria martenitsa | #41 | 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
All crawlers blocked
Audience
- 54% phone
- 44% desktop
- 2% tablet
Bulgaria
United Kingdom
India
Germany
Greece
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
7.68 / 10 · ranked #13,787 of all domains
1,935 referring domains · OpenPageRank
Search traffic
450 est. monthly organic visits (US)
52 keywords in Google's top 30
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Bulgarian (Bulgaria)
- Weight: 10.7 MB · 179 requests
- WordPress theme: avada · all themes
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Similar sites
- pu.edu.pk 9 shared
- nccu.edu.tw 18 shared
- gda.pl 33 shared
- uth.gr 25 shared
- uzhnu.edu.ua 9 shared
- ufro.cl 22 shared
- uba.ar 28 shared
- ukim.edu.mk 18 shared
Closest technology stacks among the highest-authority sites we track; "shared" counts the distinctive technologies in common.
Organisation
- Bulgarian Academy of Sciences
- Founded: 1869
- Country: Bulgaria
From Wikidata (CC0).
Infrastructure
- Hosted on AS-BG-BAS (213.191.221.71)
- DNS: bas.bg
- Email: bas.bg
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 10,782, 489 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| kulinar.ibl.bas.bg | 23 |
| bulg-enc.bas.bg | 22 |
| cl.bas.bg | 22 |
| ic.bas.bg | 22 |
| ihist.bas.bg | 22 |
| math.bas.bg | 22 |
| dcl.bas.bg | 21 |
| www.bas.bg | 21 |
| polymer.bas.bg | 20 |
| uchi.bas.bg | 20 |
| www.ibl.bas.bg | 20 |
| www.igic.bas.bg | 19 |
| popular.iki.bas.bg | 18 |
| ibir.bas.bg | 17 |
| imc.bas.bg | 16 |
| ims.bas.bg | 16 |
| atlog.ir.bas.bg | 15 |
| enc.ilit.bas.bg | 15 |
| ibl.bas.bg | 15 |
| mds.math.bas.bg | 15 |
| priroda.bas.bg | 15 |
| fri.bas.bg | 14 |
| iees.bas.bg | 14 |
| iefem.bas.bg | 14 |
Full technology history →
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Recent changes
- detected Tailwind CSS Aug 2026
- detected Hugo Jun 2026
- dropped DataTables Apr 2026
- dropped WP Google Map Plugin Apr 2026
- dropped Envoy Mar 2026
- detected lite-youtube-embed Mar 2026
- dropped reCAPTCHA Feb 2026
- dropped WP-Optimize Feb 2026
- detected Complianz Jan 2026
- dropped Three.js Jan 2026