Head-to-head · B2B data

ContactOut vs Diffbot

ContactOut wins 16 of 23 decided metrics across 2 shared suites; the loser still leads where its column is highlighted. Same frozen test sets, same run; the better value in each row is highlighted.

ContactOut

Contact data for recruiting and sales: browser extension, search / enrichment and API, personal and work emails.

★ 4.5 · 128 reviewsB

Access: MCP · API · CSV · Batch · Webhooks · Integrations

Diffbot

Web-scale Knowledge Graph built by crawling the public web: Enhance matches people and organizations, DQL searches entities including job posts, with an optional re-crawl of sources.

★ 4.9 · 29 reviewsA

Access: MCP · CLI · API · Dataset · CSV · Batch · Webhooks · Integrations

Email Datacore + suite-specific metrics

updated 2026-09-25

Metric	ContactOut · #14 of 29	Diffbot · not in suite
Match rate	69.4%	-
Valid email rate	64.7%	-
Latency p50	1,024ms	-
Cost / valid email	-	-
Invalid rate	11.8%	-
Catch-all share	20.6%	-
Business email	100.0%	-
Right-person rate	94.1%	-
Decoy hit rate	0.0%	-
Catch-all detection	71.4%	-
Confidence-score quality	+63.5 pts	-
Geographic coverage	9	-

Phone Datacore + suite-specific metrics

updated 2026-09-25

Metric	ContactOut · #9 of 24	Diffbot · not in suite
Match rate	85.7%	-
Valid / reachable rate	73.8%	-
Latency p50	490ms	-
Cost / mobile number	-	-
Right-person rate	88.5%	-
Mobile coverage	55.1%	-
Disconnected rate	7.1%	-
Low-activity share	19.0%	-
Landline / mobile classification	-	-
Country accuracy	83.3%	-
Geographic coverage	9	-

People Datacore + suite-specific metrics

updated 2026-09-25

Metric	ContactOut · #11 of 24	Diffbot · #14 of 24
Profile match rate	91.8%	85.0%
Identity accuracy	97.8%	100.0%
Latency p50	898ms	7,232ms
Price / matched profile	-	$0.022
Current employer accuracy	97.8%	68.6%
Move detection	75.0%	25.0%
Decoy hit rate	0.0%	20.0%
Job title accuracy	86.7%	49.0%
Seniority label accuracy	81.6%	-
Location accuracy	95.6%	86.3%
Work history completeness	8.2	6.2
Education completeness	100.0%	90.2%
Skills present	91.1%	72.5%
Social / profile URLs	100.0%	94.1%
Coverage by geo / function / seniority	80.0%	60.0%

Company Datacore + suite-specific metrics

updated 2026-09-25

Metric	ContactOut · #11 of 23	Diffbot · #10 of 23
Domain-to-company match rate	97.0%	99.0%
Company name accuracy	95.9%	94.9%
Latency p50	707ms	1,127ms
Price / matched company	-	$0.022
Industry accuracy	77.3%	83.8%
Employee count ±20%	26.0%	69.9%
HQ / location accuracy	93.8%	82.8%
Description present	96.9%	100.0%
Founding year accuracy	69.1%	73.7%
Domains / social profiles	100.0%	94.9%
Coverage by country / size	90.0%	95.0%

Technographic Datacore + suite-specific metrics

updated 2026-09-25

Metric	ContactOut · #7 of 10	Diffbot · not measured
Coverage	85.0%	-
Detection accuracy	35.5%	-
Latency p50	707ms	-
Cost / lookup	-	-
Live stack recall	37.1%	-
Technologies per domain	80	-
Dated results	0.0%	-
Coverage by geo / size	70.0%	-

Questions about ContactOut vs Diffbot

Which is better, ContactOut or Diffbot?

ContactOut wins 16 of the 23 metrics decided between them, across 2 benchmarks that measured both. Leaderboard ranks: People Data: ContactOut #11 of 24, Diffbot #14 of 24; Company Data: ContactOut #11 of 23, Diffbot #10 of 23.

How do ContactOut and Diffbot compare in user reviews?

ContactOut holds 4.5 / 5 across 128 reviews on G2 and Capterra; Diffbot holds 4.9 / 5 across 29 reviews on G2. Ratings belong to their platforms and play no part in the benchmark grades.

How can you get data out of ContactOut and Diffbot?

ContactOut offers an MCP server, an API, CSV export, batch endpoints, webhooks and native integrations; Diffbot offers an MCP server, a command-line tool, an API, dataset delivery, CSV export, batch endpoints, webhooks and native integrations. Both offer an MCP server, an API, CSV export, batch endpoints, webhooks and native integrations.