When we first launched our Construction SEO Report in early 2025, we benchmarked every website on the ENRTop 400 Contractors list (2024 edition). Just a few months later, we recalculated the numbers for the 2025 list.
What changed?
- List turnover:Approximately 9% of firms on the 2025 listwere new, providing us with a fresh set of websites to evaluate.
- Backlinks increase significantly: The median number of backlinks grew from just over 1,000 to more than 1,700, a strong signal that contractors are investing more in their digital presence.
- Domain authority flatlined:The average DA dipped slightly from 33 to 32.
- Speed stayed steady:Desktop and mobile performance barely budged, with contractors holding at mid-70s for desktop and mid-50s for mobile.
- Spam scores crept higher:The average moved from 6 to 7, but the median spam score stayed at 2.
Why it matters
Your competitors are getting stronger online. The firms that dominate visibility today will shape perception, attract talent, and win tomorrow’s projects.
2025 Construction SEO Benchmarks
Metric | Construction SEO 2024 | Construction SEO 2025 |
| Domain Authority | 33 | 32 |
| Backlinks | 1,008 | 1,744 |
| Spam Score | 2 | 2 |
| Desktop Speed | 73 | 75 |
| Mobile Speed | 56 | 56 |
| Domain Authority | Construction SEO 2024 | Construction SEO 2025 |
| Average | 33 | 32 |
| Median | 32 | 32 |
| Minimum | 1 | 1 |
| Maximum | 71 | 71 |
| Backlinks | Construction SEO 2024 | Construction SEO 2025 |
| Average | 14,837 | 24,616 |
| Median | 1,008 | 1,744 |
| Minimum | – | 21 |
| Maximum | 345,809 | 1,288,266 |
| Spam Score | Construction SEO 2024 | Construction SEO 2025 |
| Average | 6 | 7 |
| Median | 2 | 2 |
| Minimum | 1 | 1 |
| Maximum | 71 | 75 |
| Desktop Speed | Construction SEO 2024 | Construction SEO 2025 |
| Average | 73 | 73 |
| Median | 75 | 75 |
| Minimum | 18 | 14 |
| Maximum | 100 | 100 |
| Mobile Speed | Construction SEO 2024 | Construction SEO 2025 |
| Average | 56 | 57 |
| Median | 56 | 56 |
| Minimum | 11 | 13 |
| Maximum | 100 | 100 |
Comparing SEO: Construction vs Design
These numbers tell part of the story. This year, we also researched every website on ENR’s Top 500 Design Firms list to see how the biggest architecture and engineering firms stack up.
Not that surprisingly, design firms edge out contractors across nearly every metric. The gap matters when prospective clients, recruits, and AI-driven search engines are looking for signals of credibility and relevance.
Get the full breakdown.
Our free, ungated 2025 Construction SEO Reportdives deeper into:
- The detailed 2024 vs. 2025 benchmark comparisons
- How contractors stack up against architecture and engineering firms
- What metrics matter most for SEO performance in A/E/C
- Practical steps you can take now to improve visibility and ROI