2025 Buyer Guide Source Inventory

Objective

Identify late-2025 research feed briefings that capture vendor or platform developments for SIEM, Zero Trust network access, and GPU infrastructure planning so updated 2025 buyer guides can cite fresh differentiators, pricing guidance, and compliance attestations.

Review scope

• Repository paths: zephtech-site/feed/ (HTML briefs) and zephtech-site/content/feed/ (paired JSON metadata)
• Date window inspected: 1 August 2025 through 31 December 2025, with spot checks on earlier 2025 posts to confirm no late-breaking vendor updates were filed.
• Focus keywords: SIEM, Splunk, Sentinel, QRadar, Securonix, Elastic, Zero Trust, Zscaler, Cloudflare, Prisma Access, Cisco Secure Access, Okta, GPU, Blackwell, NVIDIA, supply chain
• Methodology: executed ripgrep queries across the date window for each vendor term, opened the 2024 anchor posts, and reviewed navigation/footer snippets in 2025 policy briefs to rule out embedded product comparisons.

Findings

1. No late-2025 SIEM vendor briefs located in the feed. - Ripgrep queries across every 2025-*.html feed item returned zero matches for Splunk, Microsoft Sentinel, IBM QRadar, Securonix, or Elastic Security, confirming there is no 2025 refresh of the SIEM comparison set. - The most recent SIEM comparison remains the 21 October 2024 guide (zephtech-site/feed/2024-10-21-best-siem-platforms-regulated-enterprises.html), which still advertises Splunk ingestion pricing “around US$150 per ingested GB per day” and Sentinel commitment tiers starting at US$2.76 per GB, alongside 2023-era FedRAMP Moderate attestations. - The companion JSON (zephtech-site/content/feed/2024-10-21-best-siem-platforms-regulated-enterprises.json) mirrors that data, so any 2025 buyer guide would cite year-old pricing and compliance evidence without additional reporting.
2. No late-2025 Zero Trust platform comparison posts identified. - Ripgrep sweeps for Zscaler, Cloudflare Zero Trust, Prisma Access, Cisco Secure Access, and Okta across 2025-*.html and JSON files returned no matches. - The 22 October 2024 analysis (zephtech-site/feed/2024-10-22-zero-trust-platform-comparison.html) remains the newest deep dive and emphasizes 2024 differentiators such as Zscaler’s private service edge rollout cadence and Cloudflare’s FedRAMP High authorization, with no mention of 2025 AI policy automation or EUCS certification timelines. - Every 2025 brief that mentions “Zero Trust” does so only inside the persistent navigation snippet that promotes the buyer guides back catalogue, reinforcing that no new platform-level research has shipped.
3. Infrastructure coverage contains reusable 2024 data but lacks 2025 GPU supply intelligence. - The March and December 2024 Blackwell briefings (zephtech-site/feed/2024-03-18-nvidia-blackwell-roadmap.html, zephtech-site/feed/2024-12-04-aws-nvidia-blackwell-roadmap.html) plus the Intel Gaudi 3 integration note (zephtech-site/feed/2024-04-09-intel-gaudi-3-integration.html) document B200/GB200 thermal profiles, DGX Cloud regional expansion, and Ethernet fabric requirements that can seed a 2025 guide. - Aug–Dec 2025 infrastructure briefs such as 2025-10-28-tefca-fhir-go-live.html and 2025-10-21-php-82-security-support-end.html address regulatory readiness and software lifecycles but contain no GPU reservation windows, pricing guidance, or supply-chain commitments. - No feed item documents NVIDIA’s 2025 channel pricing, OEM delivery dates, or Blackwell liquid cooling facility requirements, leaving critical procurement questions unanswered.

Impact

• Without new SIEM and Zero Trust briefs, any 2025 buyer guide would repackage 2024 differentiators and miss late-2024/2025 roadmap changes, undermining credibility with procurement teams expecting evidence of pricing, SLA, and compliance shifts.
• Infrastructure updates can begin using the 2024 Blackwell and Gaudi 3 briefings as primary sources, but additional sourcing is required for 2025 reservation queues, power budgets, and regional compliance attestations.
• Updating buyer-guides.html before the supporting feed posts exist risks dead CTA links and marketing copy that overpromises research coverage.
• Stakeholders need an evidence trail (links, pricing tables, attestation IDs) before marketing or sales collateral references “2025” positioning.

Recommended next steps

1. Commission missing SIEM and Zero Trust briefs. Draft editorial requests targeting: Cisco–Splunk roadmap integration plans, Microsoft Sentinel commitment tier or Defender for Cloud bundling changes, QRadar Suite SaaS performance benchmarks, Securonix Snowflake cost controls, Elastic Limitless XDR enhancements, Zscaler private service edge/AI policy automation, Cloudflare app isolation roadmap, Prisma Access AIOps releases, Cisco Secure Connect control plane updates, and Okta identity governance attestations. - Required deliverables: pricing deltas since Q4 2024, refreshed FedRAMP/StateRAMP/GDPR/ISO attestations with dates, and adoption metrics for any AI-driven detection or policy automation shipped in 2025.
2. Harvest existing infrastructure sources. Build the 2025 infrastructure buyer guide around the 2024 Blackwell and Gaudi 3 articles, capturing: EC2 P6e networking specs, DGX Cloud region expansion, GB200 NVL72 thermal demands, and Intel Gaudi 3 Ethernet fabrics. Flag remaining gaps—B200/B100 shipment timelines, liquid cooling retrofits, hyperscaler reservation pricing—for additional reporting. - Commission supplementary reporting on NVIDIA channel allocations, OEM lead times, and utility power budgeting so that procurement guidance is defensible.
3. Establish a shared research log. Track outreach and source collection (press releases, SEC filings, FedRAMP marketplace listings) for each vendor so buyer guide revisions can cite concrete URLs and pricing tables. Store interim data in version-controlled YAML/CSV to simplify diffing across updates and avoid stale numbers in HTML.
4. Sequence buyer-guides.html refresh after feed updates. Once each 2025 brief ships, prepare copy updates highlighting enforcement deadlines, pricing levers, and compliance attestations with direct links to the new feed entries. Delay publishing until the new research passes editorial QA and has stable permalinks.
5. Add validation checkpoints before launch. Require a final audit confirming that each buyer-guide citation maps to a published 2025 feed brief with matching pricing/compliance data, and that JSON front matter exposes updated CTAs for marketing automation.