How issued.live compares

Four services people weigh against this one, with what each covers and what it costs. Every figure below comes from the vendor's own site.

Prices and dataset sizes observed 14 September 2026 and sourced from each vendor's own pages. Pricing changes; check the vendor before buying. Where a vendor does not publish a price, this page says so rather than estimating one.

At a glance

	issued.live	AllZonefiles.io	Domains-Monitor	WhoisXML API	crt.sh
Cost
Entry price	$39/mo	$39/mo	$9/mo	not published for bulk data	free
Higher tier	$39–$199/mo	$79/mo	$29/mo	quote only	n/a
Free tier without an account	Yes	No	No	NRD sample only	Yes
Coverage
Domains counted	425,080,869	383,238,375	346,208,954	not stated as one figure	no domain index
Certificate Transparency	Yes	No	No	Yes	Yes
Certificate internals: SPKI, JA4X, SANs	Yes	No	No	Yes	Yes
DNS records	Yes	No	Yes	Yes	No
DNS per vantage point	Yes	No	No	No	No
Registration dates and registrar	Yes	selected zones	Yes	Yes	No
Zone-file population	Yes	Yes	Yes	Yes	No
Registrant contact details	No	No	Yes	Yes	No
History
Certificate history kept	48 hours live, permanent archive searchable on Pro	n/a	n/a	15+ years	since 2013
Dated historical snapshots	No	~15 months	since Apr 2022	Yes	Yes
Access
Bulk files available today	Yes	Yes	Yes	Yes	No
Dated event timeline for one domain	Yes	No	No	No	No
Query a single domain by API	Yes	No	No	Yes	Yes
Search by IP, certificate, SPKI or JA4X	Yes, by API	No	No	Yes	SQL only
Company-size limit on the license	None	under 5 staff	None	negotiated	None

Where each one wins

AllZonefiles.io

allzonefiles.io · bulk domain-name lists by TLD

Basic $39/mo · Pro $79/mo · Enterprise quote only

383,238,375 domains across 1,582 zones, updated daily by 09:00 UTC. The product is domain names: gzip text, one name per line, plus daily added and removed lists.

Better than us

About 15 months of dated historical snapshots on the $79 tier, with 448 dated .com files going back to June 2025.
The whole namespace in one 1.5 GB archive, refreshed daily and fetched in one call.

Not in their product

Certificates of any kind, and no DNS resolution records.
Any way to look up one domain. The API lists zones and downloads files.
Basic and Pro are licensed to organizations with fewer than five full-time staff, and internal use only. Five staff or more means an Enterprise quote.

Domains-Monitor

domains-monitor.com · bulk domain lists with contact and hosting data

Standard $9/mo or $89/yr · Pro $29/mo or $299/yr

346,208,954 domains in 1,570 zones, refreshed daily around 00:00 CET. The cheapest way in of anything here, and they sell annual billing that we do not.

Better than us

A lower entry price at $9.
Point-in-time global snapshots twice a year back to April 2022.
Registrant contact data as a product, which we do not collect.

Not in their product

Certificates and Certificate Transparency, entirely.
Whois and RDAP records as such. They sell derived contact fields instead.
DNS from more than one vantage point.

If you are considering their contact-data products, read their license and take your own view on redistributing personal data in your jurisdiction.

WhoisXML API

whoisxmlapi.com · whois, DNS, certificate and IP intelligence

Metered APIs priced publicly · bulk databases and feeds quote only

The most complete of the four, and the oldest. Around 30 query APIs plus a catalog of bulk downloads. Newly registered domains land daily at 05:00 UTC.

Better than us

Depth we cannot match: 28.7 billion historical whois records over 1.2 billion domains from 15 years of crawling, and 116 billion DNS records.
Per-call metered pricing, so a low-volume question costs a few dollars rather than a monthly subscription.
Parsed registrant fields normalized across TLDs.

Worth knowing

No published price for the bulk data. Every NRD package and database download is a quote.
Their free allotments need an account, and the whois grant is 500 calls once rather than a recurring allowance.
Historical NRD files are kept 7 days on the lower tiers, 30 days on Enterprise and 365 on Ultimate.

crt.sh

crt.sh · free Certificate Transparency search, run by Sectigo

Free. No account, no key, no paid tier.

The baseline everyone should try first. If your question is only about certificates, this may be all you need, and it costs nothing.

Better than us

Every CT-logged certificate since 2013, searchable interactively. Our live window is 48 hours and Pro searches our archived days back to 2026-09-09 — but we have only been archiving since then, so "what did this domain have in 2019" is their product and not ours, and no amount of retention on our side changes that.
A public read-only PostgreSQL endpoint, so you can run arbitrary SQL over the whole dataset.
Certificate linting, and root-program monitoring across Mozilla, Apple and Chrome that we do not attempt.

Not in their product

DNS data of any kind.
Whois, RDAP, registrar or registration dates.
Zone files, so no notion of a TLD's full population, and no domain-level index. A domain appears only once a CA issues a certificate for it.

Choosing

You want certificate history going back years. Use crt.sh, and it is free. Our live window is 48 hours, and Pro searches our permanent archive interactively from 2026-09-09 onward. That is genuinely better than sending you a file, but it does not reach 2019 and never will: we were not watching then. crt.sh was, and we do not pretend otherwise.

You want the cheapest bulk domain list. Domains-Monitor at $9, or AllZonefiles at $39 if you want the daily added and removed lists as separate products.

You want registrant contact details or 15 years of whois history. WhoisXML API. We hold neither.

You want domains, certificates and DNS answering the same question. That is what this service is for. The other four each cover one or two of those three, and joining their outputs yourself means reconciling three vendors' identifiers. Our plans are $39, $99 and $199.

Something here out of date or wrong? Tell us and we will correct it. We would rather be accurate than flattering.