I needed to find backlink opportunities by comparing my site with competitors. Here's a Python script using the SERPSpur Backlink Gap Analysis API to discover sites linking to competitors but not to me:

python
import requests

API_KEY = "your_api_key_here"

def backlink_gap(your_domain, competitor_domain):
response = requests.get(
"https://api.serpspur.com/v1/backlink-gap",
headers={"Authorization": f"Bearer {API_KEY}"},
params={"domain": your_domain, "competitors": competitor_domain}
)
data = response.json()
return data['opportunities']

your_site = "mywebsite.com"
competitor = "competitor.com"
opportunities = backlink_gap(your_site, competitor)
print(f"Sites linking to {competitor} but not to {your_site}:")
for opp in opportunities[:5]:
print(f" {opp['url']} (DA: {opp['domain_authority']})")

This revealed several high-authority sites I should reach out to. Have you tried a similar approach for link-building?