# What Sift catches ยท Sift Mod Source: https://siftmod.com/docs/catching > Every layer of moderation: instant rules, smart-check categories, always-on safety, and server protection. SFT.CATCH // layers # What Sift catches. One page per flag type: instant rules (no smart check), tunable categories in `/settings`, and checks that always stay on. How layers stack **Instant rules** run first (blocklist, offensive terms, scam hosts, floods). **Smart checks** read the message and recent context. **Child safety and member wellbeing** always run on scored messages. See the [main docs](/docs#how) for setup and commands, or [Running Sift guides](/docs/guides) for workflow deep dives. ## Instant rules No smart check needed, so these keep running after your monthly checks are gone. - Block + strike Custom blocklist Phrases your mods add in /settings. Sift matches whole words and sees through spaced-out and leetspeak spellings. Block + strikeCustom blocklistPhrases your mods add in /settings. Sift matches whole words and sees through spaced-out and leetspeak spellings. - Block + strike Offensive terms fast path Known offensive terms come down on the spot, before any smart check. Block + strikeOffensive terms fast pathKnown offensive terms come down on the spot, before any smart check. - Block + strike Scam and lookalike links Typosquat domains and known bait hosts get blocked without spending a smart check. Block + strikeScam and lookalike linksTyposquat domains and known bait hosts get blocked without spending a smart check. - Block + strike Floods, repeats, and mass mentions Rate limits and pattern rules for fast posting, copy-paste repeats, @everyone spam, and one post blasted across channels. Block + strikeFloods, repeats, and mass mentionsRate limits and pattern rules for fast posting, copy-paste repeats, @everyone spam, and one post blasted across channels. - Review Other servers' invite links Invites to servers you don't own go to review. Invites to your own server are fine. ReviewOther servers' invite linksInvites to servers you don't own go to review. Invites to your own server are fine. ## Smart check Scores the message with the lines around it. Switch categories off in /settings. - Block at default threshold Bullying and personal attacks Putting someone down, or going after one person. The last few messages count when they change the picture. Block at default thresholdBullying and personal attacksPutting someone down, or going after one person. The last few messages count when they change the picture. - Block at default threshold Hateful content Contempt aimed at protected groups, including wording the instant list misses. Block at default thresholdHateful contentContempt aimed at protected groups, including wording the instant list misses. - Review by default Adult content Explicit content between adults. Usually sent to review first instead of deleted on the spot. Review by defaultAdult contentExplicit content between adults. Usually sent to review first instead of deleted on the spot. - Block at default threshold Violent content Intimidating people, or cheering on real-world harm. Block at default thresholdViolent contentIntimidating people, or cheering on real-world harm. - Review by default Spam, ads, and scams (smart check) Unsolicited ads, scams and phishing wording, including the leetspeak and spacing tricks the instant rules can miss. Review by defaultSpam, ads, and scams (smart check)Unsolicited ads, scams and phishing wording, including the leetspeak and spacing tricks the instant rules can miss. - Review; urgent page when severe Doxxing and private info Posting someone else's phone number, address or private contact info without their OK. Sharing your own number isn't doxxing, and Sift knows the difference. Review; urgent page when severeDoxxing and private infoPosting someone else's phone number, address or private contact info without their OK. Sharing your own number isn't doxxing, and Sift knows the difference. - Block at default threshold Prohibited sales Selling or helping arrange controlled substances, restricted items, stolen goods, counterfeits and the like. Block at default thresholdProhibited salesSelling or helping arrange controlled substances, restricted items, stolen goods, counterfeits and the like. - Block at default threshold Malicious links (smart check) Phishing and malware pushes where the link or wording looks off but the host isn't on the instant list. Block at default thresholdMalicious links (smart check)Phishing and malware pushes where the link or wording looks off but the host isn't on the instant list. - Review by default Impersonation Pretending to be staff, another member, or an official account to fool people. Review by defaultImpersonationPretending to be staff, another member, or an official account to fool people. - Block at default threshold Extremist content Promoting, glorifying or recruiting for extremist groups. Block at default thresholdExtremist contentPromoting, glorifying or recruiting for extremist groups. - Varies Filter evasion Spaced-out letters, lookalike characters, and words split across messages. Sift stitches them back together before scoring. VariesFilter evasionSpaced-out letters, lookalike characters, and words split across messages. Sift stitches them back together before scoring. ## Always on Can't be toggled off. Uses its own thresholds. - Block; urgent page when severe Child safety Always checked: predatory behavior toward minors, or anything sexual involving them. You can't turn it off in /settings. Block; urgent page when severeChild safetyAlways checked: predatory behavior toward minors, or anything sexual involving them. You can't turn it off in /settings. - Support DM; page mods when urgent Members in crisis Always checked, from quiet hopelessness to someone in real danger. Dramatic gamer talk gets filtered out, and support goes by private DM. Support DM; page mods when urgentMembers in crisisAlways checked, from quiet hopelessness to someone in real danger. Dramatic gamer talk gets filtered out, and support goes by private DM. ## More Max rules, member reports, names, and server protection. - Block or review (your choice) Custom rules (Sift Max) Up to ten plain-English rules per server. Break one and Sift blocks it or sends it to review. Block or review (your choice)Custom rules (Sift Max)Up to ten plain-English rules per server. Break one and Sift blocks it or sends it to review. - Case for mods Member reports /report and Report message. They open a case for your mods. They don't ban anyone on their own. Case for modsMember reports/report and Report message. They open a case for your mods. They don't ban anyone on their own. - Block or warn Names and thread titles Nicknames, display names and thread titles, checked for blocklisted phrases, offensive terms, and fake staff titles. Block or warnNames and thread titlesNicknames, display names and thread titles, checked for blocklisted phrases, offensive terms, and fake staff titles. - Alert / stop abuse Raids, mass deletes, and anti-nuke Join bursts, channel wipes and abused mod powers. Sift alerts you, and can lock the server down or undo the damage. Alert / stop abuseRaids, mass deletes, and anti-nukeJoin bursts, channel wipes and abused mod powers. Sift alerts you, and can lock the server down or undo the damage.