Webmaster Content Freshness Agent

import requests, json, datetime

SITEMAP = "/sitemap.xml"

def check_freshness(url):
    resp = requests.head(url)
    last_mod = resp.headers.get("Last-Modified")
    age_days = (datetime.now() - datetime.strptime(last_mod, "%a, %d %b %Y")).days
    if age_days < 30: status = "Fresh"
    elif age_days < 90: status = "Review"
    elif age_days < 180: status = "Stale"
    else: status = "Very Stale"
    return {"url": url, "age": age_days, "status": status}

def generate_report(pages):
    report = [check_freshness(p) for p in pages]
    return sorted(report, key=lambda x: x["age"], reverse=True)

pages = ["/", "/about/", "/blog/ai", "/services/"]
print(json.dumps(generate_report(pages), indent=2))