Five categories your team is comparing.One produces signed audit evidence.
The system of record for engineering truth — cryptographically signed, deterministic audit evidence, generated automatically.
Built for Heads of Risk, CROs, CISOs, and Directors of Risk Engineering at firms operating under SOC 2 Type II, ISO 27001, NYDFS Part 500, DORA, or SR 11-7. Most teams compare Déjà to incident management tools or wikis — that's the wrong category. Your real adjacency is your GRC platform (Drata, Vanta, Hyperproof, ServiceNow GRC, AuditBoard, LogicGate). We sit underneath, supplying cryptographically signed receipts from deterministic Abstract Syntax Tree (AST) analysis with eight weighted scoring factors (W1–W8) — no LLM, no probabilistic guessing, no hallucination at audit time. Receipts feed your existing control framework, written to an immutable, append-only ledger, verifiable offline by audit firms — firms such as KPMG, Deloitte, EY, PwC, BDO, Grant Thornton, or independent — without us in the loop. The architectural alternative to manual evidence reconstruction at audit cycles.
Five categories your team is comparing
Most teams compare us to the wrong category.
Each category was built for a different primary job. Before a feature-level comparison, understand which category actually solves the problem you're evaluating. Two are categories regulated buyers commonly conflate with Déjà; one is the category we integrate with; one is a job-to-be-done the wiki has held by default; the last is us.
categories: 5
Category 1 · GRC platforms (adjacent · integrates with)
Compliance automation
Built to manage your compliance program — control mapping, audit workflow, evidence collection across many controls. Déjà sits underneath as a signed evidence source for the incident-evidence portion of your program. Same audit cycle, same control framework — receipts feed via the evidence API. We don't replace your GRC platform. We make its incident-evidence chain cryptographic.
Category 2 · Incident management
Postmortem platforms
Built to document what happened, assign follow-ups, and track action items. Produces postmortem pages — prose documents for humans. Not signed evidence primitives. Auditors cannot verify them offline.
Category 3 · Operations
Paging & response
Built to route alerts to on-call engineers and analyze operational patterns. Optimized for response coordination, not causal attribution or audit-grade evidence. Déjà sits behind paging, not in front of it.
Category 4 · Manual
Wikis & documents
The status quo at most companies. Engineers write postmortems in wiki pages after incidents. Nothing is structured, signed, or queryable. Compliance teams reassemble evidence manually at audit time — typically two to four weeks of senior labor per audit cycle.
Category 5 · Evidence custody infrastructure
Déjà
Built to produce cryptographically signed, audit-defensible receipts at the moment of causal attribution — scoped to SOC 2 Type II, ISO 27001, NYDFS Part 500, DORA, SR 11-7, or any regulated framework. Verifiable offline by your audit firm via the open dsr-verifier-cli (pre-release · public release Q3 2026) — no Déjà account required. Evidence is the primary output. Postmortems and alerts are secondary.
Capability comparison
Side by side, by capability.
Capability comparison against the alternatives your team is likely considering. Factual statements only — no subjective claims about UX, speed, or team quality. Accurate as of 2026.
rows: 8
When Déjà isn't the right choice
Three cases where we'd tell you to use something else.
Déjà is built for a specific job — audit evidence and deterministic attribution. If that isn't your primary need, one of the alternatives above probably fits better.
Case 1
Your team is a 10-person startup with no compliance pressure
If you're not facing SOC 2, ISO 27001, HIPAA, or regulatory evidence requirements, you don't need Déjà yet. Run postmortems in a wiki. Use a paging tool for incident response. Revisit Déjà when your first audit is on the calendar — which, for most startups, is 18–24 months before the audit actually begins.
better fit: Confluence + PagerDuty
Case 2
Your primary need is real-time alert routing
Déjà isn't a paging tool. If your on-call workflow is "signal fires → engineer gets paged → incident is declared," and that's your core problem, keep your existing alerting. Déjà sits behind paging, not in front of it. Pair Déjà with PagerDuty (native integration) or Opsgenie (via generic webhook) — they handle the page, Déjà handles the attribution and receipt.
better fit: PagerDuty + Déjà
Case 3
You want AI-assisted postmortem authoring
If your team's bottleneck is writing postmortems — prose synthesis, timeline construction, action item tracking — incident management tools handle that flow better. Déjà produces the attribution that would feed into a postmortem, but the postmortem itself is not our product. We produce structured receipts. They produce prose documents.
better fit: incident.io + Déjà
What your team gets with Déjà
Three outcomes, one mechanism.
The same cryptographically verifiable receipts serve three distinct buyers in your organization — each gets a different outcome from the same underlying evidence primitive.
audiences: 3
For your Head of Risk · compliance team
Audit evidence on tap.
- Every incident produces a signed receipt — no manual reconstruction at audit time
- Scoped to SOC 2 Type II, ISO 27001, NYDFS Part 500, DORA, SR 11-7 or any framework your firm operates under
- Offline verification via the open
dsr-verifier-cli(pre-release · public release Q3 2026) — your audit firm (firms such as KPMG, Deloitte, EY, PwC, BDO, Grant Thornton, or independent) doesn't need a Déjà account - Tamper-evident chain of custody — receipts cannot be altered after issuance, including by us
For the business
Audit-prep cost recovery.
- Illustrative: $220K loaded × 2.2 FTE-weeks × 4 cycles/yr = ~$372K/year at a mid-sized regulated firm reconstructing evidence at audit time (Déjà internal estimate)
- One year of recovered audit-prep labor pays for 4 years of Standard tier
- One avoided high-risk audit finding ($200K–$500K in remediation + consultant fees) pays for 4–7 years
- Pricing scales by scope, not per seat — unlimited auditor invitations at every tier
- Evidence remains valid if Déjà ever disappears — your receipts verify offline forever
For your engineers
Fewer repeat incidents.
- Attribution in seconds, not manual triage
- No trace IDs required — the Schema Deduction Engine finds causation from merge diffs and error signatures
- Prior resolutions surface automatically — your team stops re-solving known failures
- Engineers never log in to Déjà — Slack, PagerDuty, ServiceNow, or email handle the entire workflow
The architectural difference
Why none of the five categories produce signed evidence.
GRC platforms map controls. Observability tools detect symptoms. Workflow automation routes alerts. Manual audit prep reconstructs evidence at cycle time. Audit firms verify what you produced. None of them attribute production failures to upstream causal changes deterministically — and none issue cryptographically signed receipts that an auditor can verify offline. That's a different layer. That's what Déjà builds.
layer: evidence_infrastructure
Proof of mechanism
Déjà is not an LLM wrapper. It is a deterministic engine performing raw Abstract Syntax Tree (AST) analysis on every code change — computing a Causal Confidence Score (CCS) from eight weighted scoring factors (W1–W8) summing to 1.00. Output: a Ed25519-signed receipt written to an immutable, append-only, tamper-evident ledger. No probabilistic guessing. No hallucination at audit time. Mathematical certainty by construction. Triggered via background webhook interception on every pull_request.merged event.
For the engineer · zero-friction
- Zero-click compliance — receipts auto-generate at incident attribution
- Background webhook interception — silent on the merge event, no pipeline blocker
- No manual screenshotting of Jira tickets or Slack messages
- No audit-prep sprints — evidence ready before the auditor calendar invite goes out
For the auditor · instant verification
- Live Verifier via
dsr-verifier-cli(pre-release · public release Q3 2026) — Apache-2.0, open source - Independent Ed25519 signature verification, offline, no network call to Déjà
- No Déjà account required to verify a receipt
- No source code access required — auditors verify attribution, not the codebase
Vs. manual evidence gathering
The five categories above don't replace manual — they automate one slice of it. GRC platforms automate control mapping but still require manual evidence gathering. Observability tools automate detection but still require manual attribution. Workflow automation automates routing but still requires manual reconstruction. Based on Déjà's conversations with regulated-firm engineering teams, audit prep can consume multiple FTE-weeks per cycle reconstructing what these tools couldn't capture — searching Slack for incident context, screenshotting Jira tickets, copying deployment logs into spreadsheets, manually annotating bundles before the auditor arrives. Déjà eliminates the manual baseline entirely.
Metric 1 · Engineering hours saved
Engineering time previously spent reconstructing evidence at audit cycles is reclaimed for product work. The five categories don't reach this layer — Déjà does.
Metric 2 · Audit risk reduced
Cryptographically verifiable, tamper-evident receipts eliminate the audit-finding category of "evidence reconstruction was manual." None of the five alternatives produce this output.
Zero-trust principle
Receipts are independently verifiable. No implicit trust required between Déjà, the customer, or the audit firm. The signature is the contract; the verifier is the proof; the append-only ledger is the chain. None of the five alternative categories preserves this property — every one of them requires trusting the platform that produced the evidence.
Your team doesn't need a tool. It needs evidence.
The alternatives produce prose documents, alert routing, and timeline reconstructions. Déjà produces cryptographically signed attribution receipts that hold up to any audit — with offline verification built in from day one.
> category: evidence_infrastructure // verification_method: offline_cli // moat: DSR/1.0_spec