DomCop and SpamZilla both sell expired domain data by subscription, and buyers compare them more than any other pair. They are built for different jobs. DomCop is a search over every expiring, expired and dropped name with the paid metrics on each row. SpamZilla is a spam check with a domain list attached. Below is how they line up, with the dates the figures were checked.
The short version
- Pick DomCop when you buy from the full market and filter on metrics: 3,229,470 expiring names from 9 marketplaces and drop lists right now, Moz, Majestic, Ahrefs, SEMrush, Estibot and Open PageRank on every row, exports, saved searches with daily mails, and a crawler that finds free names from any site's dead links.
- Pick SpamZilla when your main worry is spam history and your budget is tight: its own spam score, Wayback snapshots and anchor text checks for $37 a month, with a free plan of 25 domains.
- Many buyers run both: DomCop as the search, SpamZilla as the final check before bidding.
Side by side
| DomCop | SpamZilla | |
|---|---|---|
| What it is | A search over every expiring, expired and archived domain, with the paid metrics fetched as each name arrives | A spam-detection layer over expired and auction domains, with its own score and history checks |
| Price | Starter $98 a month or $816 a year (the Expiring list). Pro $148 a month or $1,152 a year (all three lists). Team adds seats at $49 a month each. The pricing page has the detail. | Standard $37 a month. Spam-check credit packs from $17 to $97 for private lists. |
| Free option | None. A 14-day money-back guarantee instead; the live list shows a preview before you sign up. | A free plan limited to 25 domains a month, without the full feature set. |
| Lists | Expiring (ending within ten days at the auction houses), Expired (ended in the last 30 days), Archived (older drops): 3,229,470, 10,505,199 and 1,117,348 names today. | Pending-delete, expired, auction and closeout names, described as over 350,000 a day. |
| Sources | GoDaddy, DynaDot, NameJet, SnapNames, DropCatch, NameCheap, Sedo, park.io and the registries' drop lists; 9 sources and 224 extensions in the list right now. | GoDaddy, NameJet, SnapNames, Dynadot, NameSilo and Sedo plus pending-delete lists. |
| Metrics | 90+ columns: Majestic Trust Flow, Citation Flow, referring domains and topics; Moz DA and PA with the 12-month and 3-year trend; Ahrefs DR and referring domains; SEMrush traffic and keywords; Estibot value; Open PageRank; Wayback age and snapshots; WHOIS and DNS. | Majestic TF, CF, backlinks, referring domains and topics; Moz DA and PA; Ahrefs DR, UR, referring domains when you connect your own Ahrefs account; SEMrush figures. |
| Spam checks | Spam signals on the row: the Moz spam score, a spammy-name flag, a spammy-links flag, the top anchor texts and the Google index count. No single combined score. | The SZ Score from 1 (cleanest) to 100, built from backlink history, anchors, redirects, drops and archived snapshots. This is the product's core. |
| Filters and search | Common searches, a simple threshold search and an advanced search on any metric, keyword, extension or exclusion, saved with a daily e-mail digest. | Over 70 filters on the list. |
| Exports and API | CSV exports on every plan, with a row limit per plan. No public API. | Export from the member menu; the reviews we read note no API. |
| Crawler | The Expired Domain Crawler: point it at a site, a keyword or a list of URLs and it reports every free domain it finds, with metrics. An add-on of 10 slots for $50 a month on Pro and Team. | None. SpamZilla has a Wayback exporter for downloading old site HTML, which is a different tool. |
| Team seats | Yes, the Team plan: three or more named seats, shared crawler. | Single account. |
Where SpamZilla is the better choice
You already have a shortlist and want a second opinion on its history. The SZ Score condenses the signals DomCop shows as separate columns into one number, and the archived snapshots are one click away. At $37 a month it is also the cheaper way into paid data if you buy a handful of domains a year. The free plan lets you check 25 domains before you pay anything.
Where DomCop is the better choice
You need to find the names, not only check them. One search covers the whole market with the metrics already on the row, so a day's listings become a shortlist in minutes rather than a list you take elsewhere for metrics. Saved searches mail you new matches daily. The archive goes back years for aged-domain hunting. Exports feed your own sheets. The crawler turns any site's dead outbound links into registrable names with metrics, which no list-based tool offers. Teams share one subscription with named seats.
Using both
The common pattern is DomCop for the search and SpamZilla as the last gate before a bid. DomCop's spam columns catch much of what SpamZilla scores, so a cheaper variant is to buy expired domains from DomCop's list and check only the few finalists by hand in the Wayback Machine.
Frequently asked questions
Is SpamZilla cheaper than DomCop? Yes. SpamZilla's standard plan is $37 a month; DomCop starts at $98 a month, or $68 a month on the annual plan. DomCop includes the metric fetches from Moz, Majestic, Ahrefs, SEMrush and Estibot in the price.
Does DomCop have a spam score? Not as one number. The grid shows the Moz spam score and the individual signals (spammy name, spammy links, top anchors, index count) so you can weigh them yourself.
Can I try DomCop before paying? There is no trial. The live list shows a preview without an account, and every new subscription has a 14-day money-back guarantee.
Sources and corrections
DomCop figures are read live from this site on every page load. SpamZilla figures were checked on 7 October 2026 against the Search Logistics review (updated 29 May 2026: standard plan $37 a month, free plan 25 domains, metrics), the Hustle Life review (updated 12 January 2024: sources, over 350,000 domains a day, the SZ Score, 70+ filters) and the UpSnatch tool comparison (verified 2 September 2026: credit packs $17 to $97). spamzilla.io blocks automated reads, so its own pricing page could not be quoted directly. If a figure about SpamZilla is out of date, e-mail [email protected] and we will correct it.
