Observed Signal · Sep 8, 2026 · Corporate Update · Source: Uplifter · Impact: 3/5
New blog post: Which special characters cause problems in UTM strings?
Uplifter published a blog post by Adrian Kingwell on September 8, 2026, explaining how special characters in UTM strings, such as ?, &, =, #, spaces, and non-ASCII characters, can corrupt URLs or cause incorrect parsing. The post categorizes problematic characters, warns against placing UTMs after a # fragment, and recommends replacing spaces with underscores or dashes. Uplifter promotes its centralized UTM builder with locked dropdowns, a shared taxonomy, and a full audit trail, and offers a free UTM governance checklist with 33 expert-backed steps.
This matters to the adtech and martech ecosystem because UTM tracking underpins campaign attribution; special-character corruption silently poisons analytics data and can distort performance-based decisions. Uplifter's thought-leadership post promotes its governance tooling as the solution.
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Key Takeaways & Evidence Grounding
- Published on September 8, 2026, by Uplifter; written by Adrian Kingwell.
- Characters that break URL structure include ?, &, =, #, and /; an unescaped & can prematurely terminate a UTM parameter and corrupt everything after it.
- Spaces, accented/non-ASCII characters, plus signs, and percent signs can be mis-encoded or stripped.
- Best practice: avoid punctuation and special characters, replace spaces with underscores or dashes, and never place UTM parameters after a # fragment.
- Uplifter offers a centralized UTM builder with locked dropdowns, shared taxonomy, and full audit trail, plus a free UTM governance checklist with 33 expert-backed steps.
Connected Companies & Entities
1 Entity mapped“Uplifter is the publisher of the blog post and provides a governed UTM builder with locked dropdowns, a shared taxonomy, and a full audit tr...”
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