What powers 
costco.co.kr?
Last seen Sep 2026 · 41 technologies across 22 categories
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AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| costco korea | #1 | 730 |
| korea costco membership | #1 | 43 |
| buckwheat pillow | #89 | 38 |
| costco korea locations | #4 | 20 |
| korea costco | #1 | 14 |
| costco in korea | #1 | 12 |
| costco korea products | #2 | 8 |
| acclamator-class assault ship | #81 | 8 |
| logitech mx anywhere 3s | #91 | 8 |
| coenzyme q10 costco | #64 | 6 |
| costco bulgogi | #75 | 5 |
| costco in south korea | #22 | 4 |
| costco south korea | #30 | 4 |
| dyson korea | #10 | 3 |
| costco seoul | #19 | 3 |
| venta airwasher | #54 | 3 |
| miro humidifier | #67 | 3 |
| sunbeam humidifier | #93 | 3 |
| lego sandcrawler | #96 | 3 |
| sunbeam heated mattress pad | #96 | 3 |
| costco incheon | #4 | 2 |
| costco har gow | #49 | 2 |
| lotte xylitol gum | #73 | 2 |
| yangban menu | #80 | 2 |
| 1600 x 2 | #84 | 2 |
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
Policy unknown
Audience
- 67% desktop
- 33% phone
South Korea
United States
Japan
United Kingdom
Canada
Singapore
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.25 / 10 · ranked #225,008 of all domains
103 referring domains · OpenPageRank
Search traffic
960 est. monthly organic visits (US)
346 keywords in Google's top 30
Core Web Vitals
| LCP | 2.2 s |
| INP | 75 ms |
| CLS | 0.2 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Korean
- CDN: Fastly
- Weight: 10.8 MB · 441 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Apr 2000 (26 years), renews Apr 2027
- Hosted on Google Cloud (34.102.182.210)
- DNS: costcokr.com
- Email: no MX record returned
- Email security: SPF (hard fail), DMARC reject
- SSL: Certainly, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 465,897, 4 hosts
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.costco.co.kr | 23 |
| connection.costco.co.kr | 14 |
| prod-sip.costco.co.kr | 14 |
| foodsafety.costco.co.kr | 10 |
| recruit.costco.co.kr | 2 |