diff --git a/rf4_research/community_cli.py b/rf4_research/community_cli.py
index 71fc71f..76a61e3 100644
--- a/rf4_research/community_cli.py
+++ b/rf4_research/community_cli.py
@@ -275,9 +275,8 @@ def main(argv: list[str] | None = None) -> int:
     url = args.url or default_url
     try:
         site_key = fetch_site_key(url)
-        enforce_fetch_interval(site_key, state_file=args.state_file)
-        # Reserve before network I/O: failed attempts count toward the limit too.
-        mark_fetch(site_key, state_file=args.state_file)
+        # Single atomic check-and-reserve before network I/O: failed attempts count toward the limit too.
+        check_and_reserve(site_key, state_file=args.state_file)
         html = fetch_html(url)
         records = (parse(html, source_url=url) if args.source in DETAIL_SOURCES else parse(html))[:args.limit]
     except Exception as exc: