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Best Ad-blocking DNS server

A tiny always-on server for network-wide ad blocking (Pi-hole/AdGuard) behind a reverse proxy with uptime monitoring.

Recommended build

Value build — most for your money

Architecture: mini system — Intel Pentium Gold 7505

€332

Total

  • CPU threads2
  • RAM4 GB
  • Storage0 TB
  • GPUnone
Performance
100
Value
100
Efficiency
100
Expandability
10
Silence
90
Longevity
100
Reliability
70
Overall
90
Idle
5 W
Typical
8 W
Peak
15 W
Energy / year
≈ €18

Assessmentbalanced

Parts & prices

  • platform

    GEEKOM Air12 — Intel Pentium Gold 7505

    €332
Total€332

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The verdict

Based on your goals you need roughly 2 CPU threads, 4GB RAM and 0TB of storage. This system runs 24/7, so energy matters. Recommended: the Value build — most for your money — 332€ purchase, ~5W idle, ~18€/year energy (≈53€ over 3 years). GEEKOM Air12 — Intel Pentium Gold 7505: 4 threads, 8GB RAM, 5W idle — a complete, efficient prebuilt for this workload. Turnkey: no assembly, smaller footprint, lower energy than a custom build. Build DNA: performance 100, value 100, efficiency 100, expandability 10, silence 90, longevity 100 — overall 90/100. Heads-up: Total (332€) exceeds your budget (300€) by 32€ (11%). Ranking already prefers in-budget variants — this one is shown for comparison. What limits you first: storage. Alternatives: Smart build — best all-round — 415€, DNA 91/100, overkill · Long-term build — expandable & future-proof — 415€, DNA 86/100, overkill · Efficiency build — lowest energy — 415€, DNA 94/100, overkill · Silent build — acoustics first — 415€, DNA 90/100, overkill · Build yourself — for comparison — 761€, DNA 92/100, balanced.

Why this build

  • GEEKOM Air12 — Intel Pentium Gold 7505: 4 threads, 8GB RAM, 5W idle — a complete, efficient prebuilt for this workload.
  • Turnkey: no assembly, smaller footprint, lower energy than a custom build.

Who should choose it

  • The lowest total price (332€) that still covers this workload properly — best price/quality ratio.

Why not the alternative

  • Value build — most for your money beats "Smart build — best all-round" on expandability -35 — that is why it is recommended for your priorities.
  • Value build — most for your money beats "Long-term build — expandable & future-proof" on expandability -35 — that is why it is recommended for your priorities.

What it sacrifices

  • No ECC memory — fine for home use, less ideal for bit-rot-sensitive archives.
  • Expansion headroom is trimmed: parts are chosen for price per capability.
  • All drive bays are used — adding storage later means replacing drives.

System blueprint

The system as a whole — before the shopping list.

prebuilt · mini system — Intel Pentium Gold 7505

System blueprint

The system as a whole — before the shopping list.

Mission

  • DNS sinkhole / ad-block· primary · 1 users
  • Reverse proxy· secondary · 1 users
  • Uptime monitor· secondary · 1 users

Constraints

Budget
€300
Energy priority
10/10
Noise priority
7/10
Expansion priority
4/10

Recommended architecture

prebuilt · mini system — Intel Pentium Gold 7505

Compute
Memory
Storage
Networking
1G onboard
Cooling
Power
Expansion
1× RAM

What am I actually paying for?

We split your build into the performance you need, the performance you're buying, and the performance you're likely to use day-to-day. When the gap is wide, you're overbuying.

BALANCED — the build is sized close to what the workload requires.

BALANCED — the build is sized close to what the workload requires.

Performance I needPerformance I buyLikely to use
CPU threadsoverbuy241
RAM43
Storage000
GPU VRAM
Network1.0G1.0G1.0G

What this means

  • The build is sized close to what the workload requires.

Scoring & Risk

An explainable future-proof score, the Homelab Risk Score, a final pre-purchase audit and what will become the limiting factor over time.

34Moderate risk1

Future-proof score

Limited future-proofing

34

Limited future-proofing (34/100) — expect to upgrade or rebuild sooner rather than later.

Upgrade path40

Prebuilt platform — the CPU/motherboard are not swappable in the usual sense, so the upgrade path is limited to RAM/storage/PCIe.

Expansion8

Expansion headroom: 0 PCIe slot(s), 0 M.2, 0 SATA, 0 drive bay(s), 1 RAM slot(s) free.

Storage growth20

Storage is 78% utilized with 0 free drive bay(s) and 0 free SATA port(s).

Memory growth55

1 RAM slot(s) free; memory is 10% utilized.

Networking55

Networking is 1000 Mbps.

Replacement ease30

Prebuilt — proprietary parts can make replacement harder.

Workload change30

No GPU and little room to add one — demanding AI/transcoding workloads would be out of reach.

Homelab Risk Score

Moderate risk

46

Moderate risk (46/100) — a few items are worth fixing before you commit (see checklist).

Single point of failure

Risk: critical

Storage has no redundancy (0 drives, no mirror/parity) — a single drive failure exposes the array.

Fix: Add at least a mirror (RAID 1/ZFS mirror) for irreplaceable data, or an additional parity drive for larger arrays.

Storage risk

Risk: low

Solid-state storage — no moving parts, low mechanical failure risk.

Fix: For an always-on system, prefer NAS/CMR-rated drives; monitor SMART and replace before the warranty ends.

Data loss risk

Risk: low

No significant data stored — low exposure.

Fix: Add redundancy and an off-site/off-box backup for anything irreplaceable.

Power risk

Risk: critical

No PSU detected in the configuration.

Fix: Add a PSU sized at ~1.5x the peak load for efficiency headroom.

Network risk

Risk: medium

Single 1000 Mbps NIC — a switch/port failure takes the box fully offline, and multi-user media can saturate 1000 Mbps.

Fix: Consider a second NIC or a managed switch; for heavy media, plan for 2.5/10G before the build.

Expansion risk

Risk: high

0 PCIe, 0 M.2, 0 SATA, 0 bays free.

Fix: If you foresee adding drives, a NIC or a GPU, choose a case/board with more slots before buying.

Upgrade risk

Risk: low

Prebuilt platform — the next CPU generation will almost certainly require a new system.

Fix: Buy for the workload, not the socket — upgrade paths are a bonus, not a guarantee.

Final build audit

Audit found 1 critical and 0 warning item(s) worth fixing before you buy.

1 Critical0 Warning1 Optimization1 Optional1 Future

Check the balance

Critical

Total (332€) exceeds your budget (300€) by 32€ (11%). Ranking already prefers in-budget variants — this one is shown for comparison.

Action: Reconsider the config for the stated workload or budget before buying.

Category: balance

Plan faster networking

Optimization

1G networking is fine today but will bottleneck multi-user media or big NAS transfers at 0.2TB.

Action: Budget for a 2.5G/10G NIC and switch later, or spec it now.

Category: network

Keep a backup off-box

Optional

Redundancy inside the box does not survive fire, theft or a whole-array fault.

Action: Mirror the important data to an external drive, a second box, or cloud.

Category: storage

RAM expansion available

Future

1 RAM slot(s) free for a later upgrade.

Action: Leave them free until the workload actually grows.

Category: memory

What becomes the limit

Storage nearly full is the most likely thing to date this build within 1-2y.

Horizon: 1-2y

Storage nearly full

Why: 78% of raw capacity is already in use — media libraries and backups grow fast.

What to do: No free bays/ports — the next capacity jump requires a DAS or a rebuild.

Horizon: 3-5y

1G networking becomes the ceiling

Why: A 1000 Mbps link will cap NAS transfers and multi-user media before the CPU or disks do.

What to do: Factor a NIC into the next hardware purchase.

Horizon: 3-5y

No expansion left

Why: Every slot and bay is used — adding anything means replacing parts.

What to do: Keep this build single-purpose and plan a second box for new workloads.

What limits you first

storage is the closest to its limit (78% of capacity in use) — it will likely force the next upgrade.

Other builds to consider

Runner-up variants the engine generated for the same scenario — tap one to see its parts.

Smart build — best all-round

mini system — AMD Ryzen 5 7430U · Idle 7 W · overkill

€415

Idle
7 W
Typical
16 W
Energy / year
≈ €35
RoleComponentQtyPriceBuy
platformGEEKOM A5 — AMD Ryzen 5 7430U1€415
Total:€415

Long-term build — expandable & future-proof

mini system — AMD Ryzen 5 7430U · Idle 7 W · overkill

€415

Idle
7 W
Typical
16 W
Energy / year
≈ €35
RoleComponentQtyPriceBuy
platformGEEKOM A5 — AMD Ryzen 5 7430U1€415
Total:€415

Efficiency build — lowest energy

mini system — AMD Ryzen 5 7430U · Idle 7 W · overkill

€415

Idle
7 W
Typical
16 W
Energy / year
≈ €35
RoleComponentQtyPriceBuy
platformGEEKOM A5 — AMD Ryzen 5 7430U1€415
Total:€415

Silent build — acoustics first

mini system — AMD Ryzen 5 7430U · Idle 7 W · overkill

€415

Idle
7 W
Typical
16 W
Energy / year
≈ €35
RoleComponentQtyPriceBuy
platformGEEKOM A5 — AMD Ryzen 5 7430U1€415
Total:€415

Build yourself — for comparison

mini build on LGA 1151 + Intel Z370 · Idle 22 W · balanced

≈ €761

Idle
22 W
Typical
35 W
Energy / year
≈ €76
RoleComponentQtyPriceBuy
cpuIntel Core i5 7500T 2.7 GHz 4-Core LGA11511≈ €60
motherboardAsus Z370 ROG Strix Z370-H Gaming DDR4 ATX1≈ €139
ramCrucial Ballistix Sport Gray / Silver DDR4-2400 CL16 8GB (1x8GB)1≈ €30
caseFractal Design Meshify C ATX Mid Tower Black1€94
coolingThermalright Le Grand Macho Air 159mm Fanless1≈ €35
psuSeaSonic PRIME Fanless Black 700W Fully Modular 80+ Titanium Certified1€281
storageRocket Q NVMe SSD1€122
Total:≈ €761

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