July 17, 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.
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.