What powers 
udn.vn?
Last seen Sep 2026 · 254 technologies across 49 categories
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AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Search and AI assistants
- PetalBot Blocked
The other 32 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 petalbot added to robots.txt
- Sep 2026 petalbot removed from robots.txt
- Aug 2026 petalbot added to robots.txt
- Aug 2026 *: Restricted (was Allowed)
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| da nang viet nam | #34 | 70 |
| da nang | #33 | 70 |
| university of da nang | #1 | 15 |
| udn | #48 | 6 |
| masters in vietnam | #11 | 2 |
| university of vietnam | #9 | 1 |
| vietnam university | #20 | 1 |
| master's degree in vietnam | #14 | 1 |
| u vietnam | #29 | 0 |
| vien chc | #75 | 0 |
| phd in vietnam | #72 | 0 |
| list of honorary titles | #68 | 0 |
| acompa | #41 | 0 |
| gio s | #51 | 0 |
| history of da nang | #70 | 0 |
| huynh thi | #44 | 0 |
| ichst 2025 | #15 | 0 |
| ikea dunang | #42 | 0 |
| icpc 2025 world finals | #50 | 0 |
| danang pharmacy | #18 | 0 |
| da vietnamese | #33 | 0 |
| da vietnam | #28 | 0 |
| da nang international schools | #21 | 0 |
| da nang city zip code | #48 | 0 |
| da nang city zip code | #40 | 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
1 of 33 AI crawlers blocked
Audience
- 62% phone
- 38% desktop
Vietnam
Singapore
Hong Kong SAR China
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
6.52 / 10 · ranked #74,641 of all domains
417 referring domains · OpenPageRank
Search traffic
170 est. monthly organic visits (US)
25 keywords in Google's top 30
Core Web Vitals
| LCP | 0.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 8.2 MB · 92 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Similar sites
vnu.edu.vn 22 shared
Closest technology stacks among the highest-authority sites we track; "shared" counts the distinctive technologies in common.
Organisation
- Trường Đại học Sư phạm (UED) (University of Da Nang on Wikidata)
- Founded: 1994
- Industry: Education (declares
CollegeOrUniversity) - Country: Vietnam
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on VNPT-AS-VN VNPT Corp (222.255.130.178)
- Email: no MX record returned
- SSL: GlobalSign, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 55,266, 392 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| jobfair.vku.udn.vn | 43 |
| vnuk.udn.vn | 41 |
| fce.dut.udn.vn | 30 |
| ufl.udn.vn | 30 |
| wref.dut.udn.vn | 29 |
| khaothiquocte.udn.vn | 28 |
| tisdic2023.dut.udn.vn | 27 |
| vku.udn.vn | 27 |
| portal.ufl.udn.vn | 26 |
| tuyensinh.vnuk.udn.vn | 26 |
| flic.due.udn.vn | 25 |
| gis.dut.udn.vn | 25 |
| msita.udn.vn | 25 |
| atcesd2026.dut.udn.vn | 24 |
| global.vku.udn.vn | 23 |
| defi.vku.udn.vn | 22 |
| exams.ufl.udn.vn | 22 |
| jobs.dut.udn.vn | 22 |
| nhaphoc.ute.udn.vn | 22 |
| pol.ued.udn.vn | 22 |
| qldt.ute.udn.vn | 22 |
| qldt1.ute.udn.vn | 22 |
| wred.dut.udn.vn | 22 |
| motcua.ute.udn.vn | 21 |
Full technology history →
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Recent changes
- detected Base UI Sep 2026
- detected Debian Aug 2026
- detected FlyingPress Aug 2026
- dropped Site Kit Aug 2026
- detected Monaco Editor Jul 2026
- detected styled-components Jul 2026
- dropped Sovrn Jun 2026
- detected TablePress Apr 2026
- detected Ahrefs Feb 2026
- detected Site Kit Feb 2026
- dropped TablePress Jan 2026
- dropped Litespeed Cache Nov 2025