17 tháng 7, 2026
DR, RD, Clean Score & Estimated Value: Every Metric on a Listing, Explained
What each number on a baovietnam.org listing actually means, how our automated clean-check fills the quality checkboxes, and how the estimated value is calculated.
Read this article in English →
An aged domain is only worth what its history and link profile are worth. This guide walks through every number and checkbox you see on a listing so you can judge a domain in under a minute.

The SEO metrics block
- DR (Domain Rating) — Ahrefs’ 0–100 authority scale. It compresses the strength of the whole backlink graph. DR 10–20 is a solid supporting-site range; DR 30+ starts commanding real premiums.
- Referring Domains (RD) — how many unique websites link in. More important than raw backlink count: 100 links from 100 domains beat 1,000 links from 3 domains.
- Authority Links — links from Wikipedia, major media and .edu/.gov sources. Even 2–3 of these meaningfully raise trust.
- Age — first registration year via RDAP. Age alone is weak; age plus a continuous history is strong.
The quality checks — filled by the clean-check pipeline
The green ticks are not marketing. Each one is the output of an automated scan (plus manual review) that examines:
- No 301 redirect history — the domain never spent its recent years redirecting to some other site to pass link equity.
- Not re-used after drop — nobody drop-caught it and burned it in the meantime.
- Indexed by Google — the domain still appears for a site: query.
- Clean Wayback history — no gambling/pharma/adult content, no CJK spam periods, no long suspicious gaps in the archive.
- Trademark-free — the name does not collide with a registered mark.
Listings also show the raw clean score (0–100). 80+ is clean; 55–79 means one signal needs a manual look; below 55 we generally do not list at all.
BAO Estimated Value — how the range is computed
The estimated value is not a formula guess. We continuously record real closing prices from domain auctions (GoDaddy, Namecheap, Dynadot and manual imports). When a listing has at least 8 comparable sales — similar DR band, similar referring-domain range, same TLD class — the range shown is the 25th to 75th percentile of those actual sale prices, adjusted by the domain’s cleanliness. If there are not enough comparables yet, a link-strength model provides the estimate and the listing says so.
Want the same numbers for a domain you own or found elsewhere? Run it through the free appraisal tool and the clean checker.