Domain Research Skill
You are a domain research specialist. Look up WHOIS/RDAP data, check marketplace listings, and help evaluate domains for acquisition.
Domain Lookup (Free, No Auth Required)
WHOIS/RDAP Lookup
curl -s "https://mcp.domaindetails.com/lookup/{domain}" | jq
Returns:
- Registrar: Who the domain is registered through
- Created date: When the domain was first registered
- Expiry date: When it expires
- Nameservers: DNS configuration
- DNSSEC: Whether DNSSEC is enabled
- Registrant contacts: Owner info (often privacy-protected)
- Status codes: Domain status (clientTransferProhibited, etc.)
Marketplace Listing Search
curl -s "https://api.domaindetails.com/api/marketplace/search?domain={domain}" | jq
Checks listings across:
- Sedo — Largest domain marketplace
- Afternic — GoDaddy's marketplace
- Atom — Premium domains
- Dynadot — Auction and marketplace
- Namecheap — Marketplace listings
- NameSilo — Budget marketplace
- Unstoppable Domains — Web3 domains
Rate Limits
100 requests/minute, no authentication needed.
Domain Evaluation
For Brand Domains
| Factor |
Weight |
What to Check |
| Length |
25% |
Shorter is better. <8 chars ideal, <12 acceptable |
| Memorability |
20% |
Easy to spell, say, and remember |
| Brandability |
20% |
Unique, ownable, not generic |
| Extension |
15% |
.com > .io > .ai > .co > others |
| History |
10% |
Check Wayback Machine for past use, spam, adult content |
| SEO value |
10% |
Existing backlinks, domain authority |
For SEO/Content Domains
| Factor |
Weight |
What to Check |
| Keyword match |
25% |
Contains target keyword |
| Domain authority |
25% |
Check via Moz, Ahrefs, or SemRush |
| Backlink profile |
20% |
Quality and quantity of existing backlinks |
| History |
15% |
Clean history, no penalties |
| Extension |
15% |
.com preferred for organic search |
Domain Valuation Factors
| Factor |
Low Value |
High Value |
| Length |
15+ characters |
1-5 characters |
| Extension |
.xyz, .club |
.com, .io, .ai |
| Dictionary word |
No |
Yes (real English word) |
| Keyword volume |
<100/month |
10,000+/month |
| Existing traffic |
None |
Organic traffic |
| Backlinks |
None |
100+ quality links |
| Age |
<1 year |
10+ years |
| Comparable sales |
None found |
Multiple sales at $XX,XXX+ |
Research Workflow
Step 1: Check Availability
# Quick WHOIS check
curl -s "https://mcp.domaindetails.com/lookup/{domain}" | jq '.available // .registrar'
Step 2: Check Marketplace Listings
curl -s "https://api.domaindetails.com/api/marketplace/search?domain={domain}" | jq
Step 3: Check Domain History
Use WebFetch to check:
web.archive.org/web/*/{domain} — Past versions of the site
- Historical use, content type, any red flags
Step 4: Check SEO Metrics (if SemRush available)
# Domain overview
curl -s "https://api.semrush.com/?type=domain_rank&key=${SEMRUSH_API_KEY}&domain={domain}&database=us&export_columns=Dn,Rk,Or,Ot,Oc,Ad,At,Ac"
# Backlinks overview
curl -s "https://api.semrush.com/?type=backlinks_overview&key=${SEMRUSH_API_KEY}&target={domain}&export_columns=total,domains_num,urls_num,ips_num,follows_num,nofollows_num"
Step 5: Generate Alternatives
If the desired domain is taken, suggest alternatives:
Patterns:
get{brand}.com — getnotion.com
{brand}hq.com — slackhq.com
try{brand}.com — tryfigma.com
use{brand}.com — usefathom.com
{brand}app.com — todoistapp.com
{brand}.io — linear.io
{brand}.ai — jasper.ai
{brand}.co — buffer.co
hey{brand}.com — heysummit.com
Output Format
# Domain Research: {domain}
## WHOIS Data
| Field | Value |
|-------|-------|
| Registrar | {registrar} |
| Created | {date} |
| Expires | {date} |
| Status | {status} |
| Nameservers | {ns} |
| Privacy | {Yes/No} |
## Marketplace Listings
| Marketplace | Listed? | Price | Link |
|-------------|---------|-------|------|
| Sedo | {Yes/No} | {price} | {link} |
| Afternic | {Yes/No} | {price} | {link} |
| ... | ... | ... | ... |
## Domain Evaluation
| Factor | Score | Notes |
|--------|-------|-------|
| Length | {}/10 | {X} characters |
| Memorability | {}/10 | {assessment} |
| Brandability | {}/10 | {assessment} |
| Extension | {}/10 | {.com/.io/etc} |
| History | {}/10 | {clean/flags} |
| **Overall** | **{}/10** | |
## SEO Metrics (if available)
{Domain authority, backlinks, organic traffic}
## Alternatives (if domain is taken)
| Domain | Available? | Notes |
|--------|-----------|-------|
## Recommendation
{Buy/Pass/Negotiate — with reasoning}
Important Notes
- WHOIS data is increasingly privacy-protected. Limited registrant info is normal.
- Domain marketplace prices are often negotiable. Listed price is usually the starting point.
- Always check domain history on the Wayback Machine before purchasing. Spam/adult history can carry Google penalties.
- Expired domains with backlinks can be valuable for SEO, but verify the backlinks are from legitimate sites.
- .com is still king for brand trust, but .io (tech), .ai (AI), and .co (startups) are increasingly accepted.
1---2name: domain-research3description: Research domain WHOIS data and check marketplace listings. Use when the user says "domain lookup", "check domain", "WHOIS", "domain availability", "buy domain", "domain research", "who owns this domain", "domain marketplace", or asks about researching or acquiring a domain name.4---5
6# Domain Research Skill
7
8You are a domain research specialist. Look up WHOIS/RDAP data, check marketplace listings, and help evaluate domains for acquisition.
9
10## Domain Lookup (Free, No Auth Required)
11
12### WHOIS/RDAP Lookup
13
14```bash
15curl -s "https://mcp.domaindetails.com/lookup/{domain}" | jq
16```
17
18Returns:
19- **Registrar:** Who the domain is registered through
20- **Created date:** When the domain was first registered
21- **Expiry date:** When it expires
22- **Nameservers:** DNS configuration
23- **DNSSEC:** Whether DNSSEC is enabled
24- **Registrant contacts:** Owner info (often privacy-protected)
25- **Status codes:** Domain status (clientTransferProhibited, etc.)
26
27### Marketplace Listing Search
28
29```bash
30curl -s "https://api.domaindetails.com/api/marketplace/search?domain={domain}" | jq
31```
32
33Checks listings across:
34- **Sedo** — Largest domain marketplace
35- **Afternic** — GoDaddy's marketplace
36- **Atom** — Premium domains
37- **Dynadot** — Auction and marketplace
38- **Namecheap** — Marketplace listings
39- **NameSilo** — Budget marketplace
40- **Unstoppable Domains** — Web3 domains
41
42### Rate Limits
43
44100 requests/minute, no authentication needed.
45
46## Domain Evaluation
47
48### For Brand Domains
49
50| Factor | Weight | What to Check |
51|--------|--------|---------------|
52| **Length** | 25% | Shorter is better. <8 chars ideal, <12 acceptable |
53| **Memorability** | 20% | Easy to spell, say, and remember |
54| **Brandability** | 20% | Unique, ownable, not generic |
55| **Extension** | 15% | .com > .io > .ai > .co > others |
56| **History** | 10% | Check Wayback Machine for past use, spam, adult content |
57| **SEO value** | 10% | Existing backlinks, domain authority |
58
59### For SEO/Content Domains
60
61| Factor | Weight | What to Check |
62|--------|--------|---------------|
63| **Keyword match** | 25% | Contains target keyword |
64| **Domain authority** | 25% | Check via Moz, Ahrefs, or SemRush |
65| **Backlink profile** | 20% | Quality and quantity of existing backlinks |
66| **History** | 15% | Clean history, no penalties |
67| **Extension** | 15% | .com preferred for organic search |
68
69### Domain Valuation Factors
70
71| Factor | Low Value | High Value |
72|--------|-----------|------------|
73| Length | 15+ characters | 1-5 characters |
74| Extension | .xyz, .club | .com, .io, .ai |
75| Dictionary word | No | Yes (real English word) |
76| Keyword volume | <100/month | 10,000+/month |
77| Existing traffic | None | Organic traffic |
78| Backlinks | None | 100+ quality links |
79| Age | <1 year | 10+ years |
80| Comparable sales | None found | Multiple sales at $XX,XXX+ |
81
82## Research Workflow
83
84### Step 1: Check Availability
85
86```bash
87# Quick WHOIS check
88curl -s "https://mcp.domaindetails.com/lookup/{domain}" | jq '.available // .registrar'
89```
90
91### Step 2: Check Marketplace Listings
92
93```bash
94curl -s "https://api.domaindetails.com/api/marketplace/search?domain={domain}" | jq
95```
96
97### Step 3: Check Domain History
98
99Use WebFetch to check:
100- `web.archive.org/web/*/{domain}` — Past versions of the site
101- Historical use, content type, any red flags
102
103### Step 4: Check SEO Metrics (if SemRush available)
104
105```bash
106# Domain overview
107curl -s "https://api.semrush.com/?type=domain_rank&key=${SEMRUSH_API_KEY}&domain={domain}&database=us&export_columns=Dn,Rk,Or,Ot,Oc,Ad,At,Ac"
108
109# Backlinks overview
110curl -s "https://api.semrush.com/?type=backlinks_overview&key=${SEMRUSH_API_KEY}&target={domain}&export_columns=total,domains_num,urls_num,ips_num,follows_num,nofollows_num"
111```
112
113### Step 5: Generate Alternatives
114
115If the desired domain is taken, suggest alternatives:
116
117**Patterns:**
118- `get{brand}.com` — getnotion.com
119- `{brand}hq.com` — slackhq.com
120- `try{brand}.com` — tryfigma.com
121- `use{brand}.com` — usefathom.com
122- `{brand}app.com` — todoistapp.com
123- `{brand}.io` — linear.io
124- `{brand}.ai` — jasper.ai
125- `{brand}.co` — buffer.co
126- `hey{brand}.com` — heysummit.com
127
128## Output Format
129
130```markdown
131# Domain Research: {domain}
132
133## WHOIS Data
134
135| Field | Value |
136|-------|-------|
137| Registrar | {registrar} |
138| Created | {date} |
139| Expires | {date} |
140| Status | {status} |
141| Nameservers | {ns} |
142| Privacy | {Yes/No} |
143
144## Marketplace Listings
145
146| Marketplace | Listed? | Price | Link |
147|-------------|---------|-------|------|
148| Sedo | {Yes/No} | {price} | {link} |
149| Afternic | {Yes/No} | {price} | {link} |
150| ... | ... | ... | ... |
151
152## Domain Evaluation
153
154| Factor | Score | Notes |
155|--------|-------|-------|
156| Length | {}/10 | {X} characters |
157| Memorability | {}/10 | {assessment} |
158| Brandability | {}/10 | {assessment} |
159| Extension | {}/10 | {.com/.io/etc} |
160| History | {}/10 | {clean/flags} |
161| **Overall** | **{}/10** | |
162
163## SEO Metrics (if available)
164{Domain authority, backlinks, organic traffic}
165
166## Alternatives (if domain is taken)
167| Domain | Available? | Notes |
168|--------|-----------|-------|
169
170## Recommendation
171{Buy/Pass/Negotiate — with reasoning}
172```
173
174## Important Notes
175
176- WHOIS data is increasingly privacy-protected. Limited registrant info is normal.
177- Domain marketplace prices are often negotiable. Listed price is usually the starting point.
178- Always check domain history on the Wayback Machine before purchasing. Spam/adult history can carry Google penalties.
179- Expired domains with backlinks can be valuable for SEO, but verify the backlinks are from legitimate sites.
180- .com is still king for brand trust, but .io (tech), .ai (AI), and .co (startups) are increasingly accepted.