SubjectLine Pro

SubjectLine Pro is an AI-powered email subject line generator designed to help B2B marketers and sales professionals boost email open rates. The platform provides instant, high-converting subject line variations optimized for engagement, clarity, and conversion, alongside tools for effectiveness scoring and A/B testing recommendations.

LLM mention score

Normalized 0–100 · last 8 weeks

DataForSEO API

Get LLM mention data of any company via DataForSEO API

Get access to the structured data on keyword, brand, and website mentions in LLMs, including metrics like AI search volume, impressions, and mentions count.

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How to get LLM mention data →

// Fetch SubjectLine Pro mentions
POST v3/ai_optimization/llm_mentions/search/live
[
    {
        "target": [
            {
                "keyword": "SubjectLine Pro",
                "search_scope": ["any"]
            }
        ],
        "platform": "chat_gpt",
        "order_by" : ["ai_search_volume,desc"]
    }
]