> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blitz-api.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Our Standard for Quality

# Our Standard for Quality

> Why we prioritize precision and verification over raw volume.

<div style={{position:'absolute',width:'1px',height:'1px',padding:0,margin:'-1px',overflow:'hidden',clipPath:'inset(50%)',whiteSpace:'nowrap',border:0}}>
  > **Agents & LLMs**: a Markdown version of this page is available by appending `.md` to the URL, and the full documentation index is at [llms.txt](https://docs.blitz-api.ai/llms.txt).
</div>

In the B2B data market, there is a misconception that "more is better." At BlitzAPI, we have a different vision: **Data is a liability unless it is verified.**

While traditional providers compete on the size of their database (often selling you contacts who left 6 months ago), we compete on the **precision of the signal**. We are not just a data provider; we are a **Verification Engine**.

<img src="https://mintcdn.com/blitzapi-6cafe00d/lMjF8LYneijS3EL2/images/linkedin-real-time.png?fit=max&auto=format&n=lMjF8LYneijS3EL2&q=85&s=0604336783ba64970188cfc1b2d284d7" alt="Top Quality B2B Data - BlitzAPI" style={{ width:"48%" }} width="1024" height="1024" data-path="images/linkedin-real-time.png" />

***

## 🛡️ The "Zero-Guesswork" Philosophy

Many tools use "pattern matching" to generate emails (e.g., trying `firstname.lastname@company.com` and hoping it works). This is dangerous for your domain reputation.

**We do not guess.** Our infrastructure relies on a **Deterministic Approach**. We only deliver a contact point when we have cross-referenced multiple signals confirming that:

1. The person is **currently** active in this role.
2. The email address accepts messages **today**.

> "We would rather return 'Not Found' than deliver a risky lead. Your sender reputation is our priority."

***

## The 30-Day Hygiene Loop

B2B data decays at a rate of roughly 3-5% per month. People change jobs, domains expire, and servers change security rules.

To combat this entropy, BlitzAPI runs a continuous, autonomous hygiene process:

<CardGroup cols={2}>
  <Card title="Continuous Refresh" icon="rotate">
    We do not let data sit stale. Our verified emails are re-tested against mail servers **at least once every 30 days**.
  </Card>

  <Card title="Advanced Validation" icon="shield-check">
    We go beyond basic syntax checks. We perform deep SMTP handshakes to validate even the most difficult "Catch-All" domains.
  </Card>
</CardGroup>

If a contact fails our internal check, they are immediately removed from our live circulation. You never pay for our "cleaning" process; you only see the result.

***

## The 3-Layer Verification Model

When you request data from BlitzAPI, you aren't just querying a table. You are triggering a complex verification workflow that happens in milliseconds.

<Steps>
  <Step title="Layer 1: Professional Signal">
    **Is this person real?** We verify the digital footprint on professional networks to confirm the current Job Title and Company. If the person has moved, we detect it.
  </Step>

  <Step title="Layer 2: Cross-Source Matching">
    **Is this contact info correct?** We match the identity against multiple compliant data touchpoints to find associated contact information.
  </Step>

  <Step title="Layer 3: Deliverability Proof">
    **Is it safe to send?** The final gate. We verify that the email address is valid and deliverable right now.
  </Step>
</Steps>

***

## Coverage & Accuracy

| Data Type               | Coverage               | Notes                                                     |
| :---------------------- | :--------------------- | :-------------------------------------------------------- |
| **Contacts (LinkedIn)** | Global                 | All contacts tied to LinkedIn profiles                    |
| **Verified Emails**     | Global                 | **97% accuracy**. Real emails only — no pattern guessing. |
| **Phone Numbers**       | **United States only** | \~90-95% mobile numbers. No international phone coverage. |
| **Companies**           | Global                 | Full LinkedIn company dataset                             |

<Warning>
  **Phone enrichment is US-only.** If you need phone numbers for contacts outside the United States, BlitzAPI cannot provide them.
</Warning>

***

## Why this enables Automation

High-quality data is the fuel for modern Growth Engineering. Because our error rate is exceptionally low, you can confidently remove manual review steps from your pipeline.

* **Trust your Automations**: Plug BlitzAPI directly into your CRM or cold email tools (Smartlead, HubSpot).
* **Protect your Domain**: Keep your bounce rates low to ensure your emails actually land in the Primary Inbox.