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About

1Lookup is an enterprise-grade data verification and intelligence platform that gives businesses real-time, high-accuracy validation for phone numbers, email addresses, and IP addresses through a unified API, helping ensure data quality, reduce fraud, and protect user experiences. It aggregates data from authoritative sources, including carrier networks, FCC databases, and global threat feeds, with daily updates to deliver sub-second verification results that detect invalid, risky, or fraudulent identities, improve deliverability, and flag disposable or suspicious contact data. The core services include phone validation with HLR and carrier lookup, phone spam and risk detection, email address validation with SMTP checks and disposable domain screening, and IP intelligence for precise geolocation, proxy/VPN detection, and risk scoring, all accessible via modern REST API calls that scale to millions of daily lookups without rate limits.

About

SimpleVerifier is a hosted email verification service for teams preparing contact lists for outreach, marketing, or lead generation. Users can check one address or upload a CSV for batch processing. Email checks evaluate syntax and mail routing, then probe recipient servers using SMTP without sending a message. Each row returns valid, risky, or invalid with a reason. Catch-all domains, role addresses, and providers or servers that do not confirm mailbox status remain risky rather than being guessed valid. It also checks phone number format and type. Higher-tier plans include email finding and website enrichment, and the API is available on Pro, Business, and Agency plans. Integrations include Instantly, Smartlead, HubSpot, and Mailchimp. Monthly plans cover different list volumes, and the first 100 email checks are free after Google sign-in. SimpleVerifier serves outbound emailers, lead-generation agencies, marketers, and developers who clean lists before campaigns.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers, product teams, and risk/compliance professionals who need an API to validate and verify user phone numbers, email addresses, and IPs in real time to improve data quality, prevent fraud, and reduce risk

Audience

Cold emailers, outbound and lead-generation agencies, marketers, and developers who prepare email lists before sending campaigns.

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$49 per month
Free Version Not Supported
Free Trial Supported

Pricing

$9/month
Starter is $9/month for 2,500 checks. Pro is $39/month with no cap: the first 100,000 checks each month run at full speed, and additional checks are processed at a slower pace. Business is $99/month for 300,000 full-speed checks, and Agency is $249/month for 750,000 full-speed checks; both plans add seats. One-time packs start at $15 for 10,000 checks and do not expire. The first 100 checks are free after Google sign-in, with no card required.
Free Version Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

1Lookup
United States
www.1lookup.io

Company Information

SimpleVerifier
Founded: 2025
simpleverifier.com

Alternatives

Alternatives

EndBounce

EndBounce

endbounce.com
Antideo

Antideo

Bizmindz Technologies LLP

Categories

Categories

Email Verification Supported

Integrations

HubSpot CRM Not Supported
Instantly Not Supported
Mailchimp Not Supported
Smartlead.ai Not Supported

Integrations

HubSpot CRM Supported
Instantly Supported
Mailchimp Supported
Smartlead.ai Supported
Claim 1Lookup and update features and information
Claim 1Lookup and update features and information
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