ShieldMarc vs Red Sift OnDMARC
For UK MSPs and IT teams who want every price published, not just the entry tier.
ShieldMarc is a flat-priced, self-serve alternative to Red Sift OnDMARC for DMARC monitoring, with every tier published at £0, £49 and £99 per month (annual) instead of OnDMARC's single published 'starting at' entry price with contact-sales tiers above it. Red Sift is a UK-headquartered, strongly certified email authentication platform (ISO 27001, SOC 2 Type II, Cyber Essentials) and a genuinely credible choice; this comparison is not a jurisdiction fight, because both companies are UK-based. Where ShieldMarc wins is pricing transparency, flat multi-domain economics, and breadth: lookalike, SSL, DNS and uptime monitoring are included in one dashboard rather than sold as separate products. Figures below are from Red Sift's public pricing page, verified July 2026. Red Sift publishes in USD, converted to GBP at approximately £1 = $1.25; verify directly at redsift.com/pulse-platform/ondmarc/pricing.
Every tier published vs one 'starting at' price
Red Sift publishes exactly one OnDMARC price: Express, starting at approximately £7.20/mo ($9 USD, billed annually), capped at 4 domains and 30 days of history. Essentials, Enterprise and Premier are all contact-sales. ShieldMarc publishes every tier: £0, £49 and £99 per month (annual), plus expansion buckets at £39.99/mo. No quote cycle at any scale.
Flat multi-domain economics
OnDMARC's contact-sales tiers gate at 25 active sender domains (Essentials and Enterprise) or 50 (Premier), upgradable at extra cost. ShieldMarc Professional covers 25 domains for £49/mo annual (~£1.96/domain) and MSP covers 100 domain slots for £99/mo (~£0.99/domain at capacity), with published expansion at £39.99/mo per bucket.
One dashboard, not three products
In the Red Sift Pulse Platform, lookalike detection (Brand Trust) and certificate monitoring (Certificates) are separate paid products, and there is no uptime monitoring product. ShieldMarc bundles lookalike scanning on all plans, and SSL, DNS and uptime monitoring on paid tiers, in a single subscription.
Pricing and plan limits (verified July 2026)
| Feature | Red Sift OnDMARC | ShieldMarc |
|---|---|---|
| Free tier | None. Entry is a paid tier with a 14-day free trial (no card) | Starter: 1 domain, 10,000 messages/mo, 1 year retention, 20 free tools |
| Published entry tier 'Starting at' pricing scales with usage; always billed annually | Express: starting at ~£7.20/mo ($9 USD, billed annually), up to 4 domains, 1M emails/mo, 30-day history | Professional: £49/mo annual, 25 domains, 1M messages/mo, 1-year retention |
| What the entry tier withholds | No Dynamic SPF (hard 10 SPF-lookup cap) and only 30 days of data history; real-world use pushes you to unpublished tiers | Full paid feature set from £49/mo: SPF flattener, SSL, DNS and uptime monitors, 1-year retention |
| Published pricing above the entry tier | None. Essentials, Enterprise and Premier are all contact-sales | Every tier published: £49 and £99/mo (annual), expansion buckets £39.99/mo |
| Domain allowances | 4 on Express; 25 active sender domains on Essentials and Enterprise, 50 on Premier, upgradable at extra cost | 25 on Professional, 100 slots on MSP, +50 slots per £39.99/mo bucket |
| Monthly message volume | 1M on Express; unlimited on the contact-sales tiers | 1M on Professional, 5M on MSP, +5M per bucket; no hard cap, 3-month grace |
| Platform users | Unlimited on every tier, including Express | 1 on Starter, 5 on Professional, unlimited on MSP |
| Data history | 30 days on Express; 1 year on the contact-sales tiers | 1 year on every plan, including the free Starter tier |
| Billing options | Published Express price is annual billing only | Monthly or annual on every paid tier (Professional £69/£49, MSP £129/£99) |
| Can you estimate your cost upfront? Red Sift's UK G-Cloud 14 listing shows a price range of £0.58 to £140 per unit | Only up to 4 domains. Beyond Express it is a sales cycle with very wide real-world price variance | Yes, for every standard case. Enterprise is only for SLA, hosting or compliance specifics |
Features and depth
| Feature | Red Sift OnDMARC | ShieldMarc |
|---|---|---|
| Analysis engine Paid ShieldMarc tiers only, on-demand only. We combine both. | Red Sift Radar (LLM assistant): sold as Pro seats bundled with the top tiers, 4 on Enterprise and 8 on Premier; no seats bundled on Express or Essentials | Proprietary threat model on all plans, plus Claude AI on paid tiers |
| SPF lookup-limit handling | Dynamic SPF (flagship): unlimited lookups without macros, but contact-sales tiers only; Express is capped at 10 lookups | SPF flattener on paid tiers today; auto-maintained Dynamic SPF is on the roadmap |
| Hosted / managed DNS records | Dynamic Services manage DMARC, SPF, DKIM, MTA-STS, TLS-RPT and BIMI in-platform | Monitoring plus guided fixes; we do not host SPF or BIMI records today |
| BIMI and VMC | Integrated VMC provisioning; one VMC bundled on Enterprise and Premier | Not offered |
| Lookalike domain scanning | Not in OnDMARC; sold separately as Red Sift Brand Trust | Included on all plans, including free |
| SSL certificate monitoring | Separate product (Red Sift Certificates) | Included on paid tiers, one monitor per verified domain |
| Uptime monitoring | No uptime monitoring product on the Pulse Platform | Included on paid tiers |
| DNS hygiene monitoring Different tools: DNS Guardian targets takeover attacks; ours covers record health | DNS Guardian (anti-takeover monitoring): reserved for the top contact-sales tiers, custom pricing | DNS health monitoring (DNSSEC, MTA-STS, TLS-RPT, CAA) on paid tiers from £49/mo |
| Subdomain policy (sp=) detection | Not detailed on their public plan pages | sp= scored independently, weaker-than-p flagged as a distinct control failure |
| MSP programme | Dedicated MSP programme: multi-tenancy, RBAC, SAML/SSO/SCIM, partner portal, Pax8 distribution | MSP plan at a published £99/mo: 100 domain slots, TLD grouping, unlimited seats |
| Brand TLD grouping (MSP) | Not advertised | TLD variants count as one slot |
| Path to enforcement | Vendor cites a typical 6-8 week path to p=reject | Prioritised actionable tasks per domain; pace depends on your senders |
Data, hosting and privacy
| Feature | Red Sift OnDMARC | ShieldMarc |
|---|---|---|
| Company base | UK-headquartered (Redsift Limited, London), ICO-registered; VC-backed with a US arm in Austin, Texas | UK owned and run |
| Data residency | UK, EU and USA regional residency options | EU hosted by default, UK hosting on request |
| Infrastructure | IBM Cloud and/or Microsoft Azure core, with Google Cloud for Dynamic Services | Runs its own database, authentication and monitoring stack; savings passed into flat pricing |
| Third-party certifications | ISO 27001 (A-LIGN), SOC 2 Type II, Cyber Essentials | Cyber Essentials, then SOC 2/ISO 27001 on the roadmap; certification-grade controls documented on our Trust page |
| PII stored | Standard SaaS profile; ICO-registered data controller with data encrypted at rest | Minimal by design: account emails, audit log, rare RUF headers |
Conclusion
Where ShieldMarc has an edge
- Published pricing on every tier, including expansion buckets at £39.99/mo. Red Sift publishes only a 'starting at' price for Express; Essentials, Enterprise and Premier all require a sales cycle.
- Flat multi-domain economics: 25 domains for £49/mo annual (~£1.96/domain) or 100 domain slots for £99/mo (~£0.99/domain), versus a 4-domain entry tier and 25/50 active-domain gates on unpublished tiers.
- A genuinely free Starter tier with 1 year of data retention. OnDMARC has no free tier, and its entry tier keeps only 30 days of history.
- Lookalike scanning, SSL, DNS and uptime monitoring in one subscription. On the Red Sift Pulse Platform, lookalike detection (Brand Trust) and certificate monitoring (Certificates) are separate paid products, and uptime monitoring is not offered.
- Paid-plan AI analysis combines our proprietary threat model with a frontier Anthropic Claude model from £49/mo, on demand only. Radar seats are bundled only with the top contact-sales tiers (Enterprise and Premier).
- Monthly billing available on every paid tier; the published OnDMARC price is annual billing only.
- Minimal personal data by design, suitable for DPIA-heavy public sector buyers.
Where Red Sift OnDMARC stacks up
- Certifications today: ISO 27001 (audited by A-LIGN), SOC 2 Type II and Cyber Essentials. If your procurement requires these as hard gates, that may be decisive; ShieldMarc is still on the roadmap for SOC 2 and ISO 27001.
- Dynamic SPF is shipping and mature: unlimited SPF lookups without macros on its contact-sales tiers. ShieldMarc offers an SPF flattener today, with auto-maintained Dynamic SPF still on the roadmap.
- Full hosted record management: Dynamic Services manage DMARC, SPF, DKIM, MTA-STS, TLS-RPT and BIMI in-platform, including integrated VMC provisioning for BIMI. ShieldMarc does not ship hosted SPF or hosted BIMI today.
- Unlimited platform users on every tier, and unlimited email volume on the contact-sales tiers.
- UK-headquartered, ICO-registered, with UK, EU and USA data residency options — jurisdictionally on par with ShieldMarc for a UK buyer, and well funded (a $54M Series B, announced February 2022, per Red Sift's own site).
- An established MSP programme with multi-tenancy, RBAC, SAML/SSO/SCIM and Pax8 distribution — more mature partner infrastructure than ShieldMarc's early-days MSP plan.
- A very low-cost published entry point for small estates: Express from approximately £7.20/mo ($9 USD, billed annually) for up to 4 domains, with a 14-day no-card trial.
Frequently asked questions
What is an alternative to Red Sift OnDMARC for DMARC monitoring?
ShieldMarc is a flat-priced, self-serve alternative to Red Sift OnDMARC. It parses the same DMARC aggregate reports but publishes every tier (£0, £49 or £99 per month on annual billing, with expansion buckets at £39.99 per month) instead of OnDMARC's single published 'starting at' entry price with contact-sales tiers above it. ShieldMarc also bundles lookalike scanning, SSL, DNS and uptime monitoring into one dashboard, where Red Sift sells lookalike detection (Brand Trust) and certificate monitoring (Certificates) as separate products. Other alternatives include dmarcian, EasyDMARC and Valimail. Note that Red Sift is also UK-headquartered, so the difference is pricing model and breadth, not jurisdiction.
Is there a cheaper alternative to Red Sift OnDMARC?
It depends on your domain count. For up to 4 domains, OnDMARC Express is very cheap, starting at approximately £7.20 per month ($9 USD, billed annually), though it excludes Dynamic SPF, caps SPF at 10 lookups and keeps only 30 days of history. Above 4 domains every OnDMARC tier is unpublished contact-sales pricing, with 25 active sender domains on Essentials and Enterprise and 50 on Premier. ShieldMarc Professional covers 25 domains for £49 per month on annual billing (about £1.96 per domain) and MSP covers 100 domain slots for £99 per month (about £0.99 per domain), all published, so for multi-domain estates ShieldMarc is the predictable, and typically cheaper, option.
Which is better for UK MSPs: Red Sift OnDMARC or ShieldMarc?
Both are UK-headquartered and both run genuine MSP programmes, so it comes down to economics and scope. Red Sift has a mature partner infrastructure (multi-tenancy, RBAC, SAML/SSO/SCIM, Pax8 distribution) and hosted record management including Dynamic SPF and BIMI with VMC provisioning, but its MSP-scale tiers are contact-sales with 25 or 50 active-domain gates. ShieldMarc's MSP plan is a published £99 per month for 100 domain slots with TLD grouping, unlimited seats and expansion buckets at £39.99 per month, and it includes lookalike, SSL, DNS and uptime monitoring that Red Sift sells as separate products. If you need ISO 27001 or SOC 2 Type II today, Red Sift holds both; ShieldMarc has Cyber Essentials with SOC 2 and ISO 27001 on the roadmap.
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