Dental Website SEO Benchmark: Illinois (2026)
Based on 2,140 audited dental websites in Illinois, from 3,050 attempted domains. Cohort dps-37-v1.
Browse the Illinois practice directoryIllinois practices scored a median of 77, matching the national median of 77. The largest difference versus the national cohort (n=50,405) was clear booking action not detected: 38.27% of 2,140 Illinois sites, 4.08 percentage points lower than the national rate. Illinois's strongest other relative result was insurance or payment page not detected, with the observed gap 2.94 percentage points below the national rate.
77
Median score
0 vs national median 77
74.79
Mean score
+0.66 vs national mean 74.13
2,140
Websites checked
Nationwide: 50,405 websites checked
70.16%
Auditable rate
−0.51 pp vs national 70.67% (50,405 of 71,323); state base 2,140 of 3,050
Score distribution
Grade distribution
Percentages use all 2,140 audited Illinois domains as the base.
A
6.45%
138 of 2,140
B
36.68%
785 of 2,140
C
29.07%
622 of 2,140
D
16.54%
354 of 2,140
F
11.26%
241 of 2,140
Category detail
Average category scores
Each average uses the same 2,140-domain audited base. Local SEO is shown only as a labelled detail because three inputs were not evaluated in this cohort.
61.20
Website fundamentals
Average across 2,140 websites
68.59
AI visibility
Average across 2,140 websites
71.56
Patient trust
Average across 2,140 websites
97.40
Local SEO
Partial; upward-biased
Largest absolute difference first
Metric rates versus the national cohort
“Not detected” means a signal was absent from the homepage and up to two linked pages in this bounded crawl; it does not prove the signal is absent everywhere on the site. Every percentage below shows its observation base.
| Metric | Illinois rate | National rate | Difference vs national |
|---|---|---|---|
| Clear booking action not detectedPatient journey | 38.27%819 of 2,140 | 42.35%50,405 websites | −4.08 pp |
| Insurance or payment page not detectedPatient journey | 48.46%1,037 of 2,140 | 51.40%50,405 websites | −2.94 pp |
| XML sitemap not detectedWebsite fundamentals | 27.52%589 of 2,140 | 24.75%50,405 websites | +2.77 pp |
| BreadcrumbList structured data not detectedStructured data | 61.50%1,316 of 2,140 | 63.60%50,405 websites | −2.10 pp |
| Privacy-policy link not detectedPatient journey | 40.19%860 of 2,140 | 42.09%50,405 websites | −1.90 pp |
| DNS failureCrawl accessibility | 12.56%383 of 3,050 | 10.68%71,323 websites | +1.88 pp |
| Service or treatment structured data not detectedStructured data | 90.23%1,931 of 2,140 | 91.90%50,405 websites | −1.67 pp |
| Dentist or LocalBusiness structured data not detectedStructured data | 37.10%794 of 2,140 | 38.72%50,405 websites | −1.62 pp |
| Unclear H1 structureWebsite fundamentals | 52.20%1,117 of 2,140 | 53.80%50,405 websites | −1.60 pp |
| FAQ page not detectedPatient journey | 66.96%1,433 of 2,140 | 65.47%50,405 websites | +1.49 pp |
| HTTP 403 responseCrawl accessibility | 6.75%206 of 3,050 | 8.09%71,323 websites | −1.34 pp |
| Emergency-services page not detectedPatient journey | 57.24%1,225 of 2,140 | 58.40%50,405 websites | −1.16 pp |
| AggregateRating structured data not detectedStructured data | 91.82%1,965 of 2,140 | 91.06%50,405 websites | +0.76 pp |
| Contact or inquiry form not detectedPatient journey | 69.44%1,486 of 2,140 | 68.70%50,405 websites | +0.74 pp |
| Images missing alternative textWebsite fundamentals | 74.72%1,599 of 2,140 | 74.25%50,405 websites | +0.47 pp |
| Missing meta descriptionsWebsite fundamentals | 32.99%706 of 2,140 | 33.36%50,405 websites | −0.37 pp |
| Missing canonical tagsWebsite fundamentals | 25.79%552 of 2,140 | 26.14%50,405 websites | −0.35 pp |
| Other HTTP errorCrawl accessibility | 1.38%42 of 3,050 | 1.73%71,323 websites | −0.35 pp |
| FAQPage structured data not detectedStructured data | 95.89%2,052 of 2,140 | 95.57%50,405 websites | +0.32 pp |
| robots.txt restrictionCrawl accessibility | 4.13%126 of 3,050 | 3.82%71,323 websites | +0.31 pp |
| Other crawl failureCrawl accessibility | 4.13%126 of 3,050 | 4.22%71,323 websites | −0.09 pp |
| TimeoutCrawl accessibility | 0.49%15 of 3,050 | 0.40%71,323 websites | +0.09 pp |
| Limited useful contentWebsite fundamentals | 32.15%688 of 2,140 | 32.11%50,405 websites | +0.04 pp |
| Invalid responseCrawl accessibility | 0.39%12 of 3,050 | 0.38%71,323 websites | +0.01 pp |
Largest audited city-state samples
Top Illinois markets in the cohort
Markets are ordered by audited-domain count. Each row gives its own base; these are descriptive cohort cuts, not city rankings.
| Market | Audited domains | Median score |
|---|---|---|
| Chicago, IL | 363 | 76 |
| Naperville, IL | 58 | 80.50 |
| Arlington Heights, IL | 38 | 77.50 |
| Aurora, IL | 34 | 80 |
| Schaumburg, IL | 33 | 77 |
| Springfield, IL | 32 | 74.50 |
| Glenview, IL | 27 | 78 |
| Peoria, IL | 27 | 80 |
| Orland Park, IL | 26 | 80.50 |
| Rockford, IL | 26 | 74.50 |
Common questions
Dental SEO and website questions for Illinois
- How do Illinois dental practice websites score?
- Across 2,140 audited Illinois dental websites, the median DentalPresence Score is 77 out of 100 — equal to the national median of 77. The score summarizes 37 deterministic website and SEO checks.
- What do Illinois dental websites most often get wrong?
- The most widespread gaps observed in the Illinois cohort are: “FAQPage structured data not detected” (96% of audited sites); “AggregateRating structured data not detected” (92% of audited sites); “Service or treatment structured data not detected” (90% of audited sites). “Not detected” is a bounded-crawl observation, not proof a signal is absent everywhere on a site.
- How can I compare my dental practice website with the Illinois average?
- Run a free DentalPresence score: it audits a practice website against the same 37 checks behind every figure on this page and returns a prioritized list of what to fix first. No card is required.
Methodology and limitations
What this study measures—and what it does not
Cohort. The completed production run covered 109,408 matched practice-location candidates across 71,323 normalized domains. Website-level findings use one deterministic representative candidate for each of the 50,405 successfully crawled domains, avoiding duplicate-domain weighting.
Collection window. Public pages were crawled on 2–3 August 2026 using methodology dps-37-v1. The bounded HTTP crawler inspected robots.txt, sitemap signals, the homepage, and up to two linked internal pages. Browser rendering was not used for this index run.
Scoring. The DentalPresence Score averages four deterministic category scores. Three Local SEO inputs—Google Business Profile, cross-directory NAP consistency, and service coverage—were not evaluated in this open-data backfill, so the Local SEO average is partial and upward-biased.
Detection limits. A signal not detected in three pages may exist elsewhere, be injected only after JavaScript rendering, or use markup the parser did not recognize. The high “orphan page” result was excluded from headline recommendations because a bounded crawl cannot establish sitewide orphan status reliably.
Sampling. This is a large matched open-place cohort, not a probability sample of every U.S. dental office. It should not be used to estimate national market share or infer the quality of any individual practice.
No causal claims. The study did not use rankings, traffic, conversions, clinical data, credentials, safety records, or patient outcomes. A failed check is an observable website signal, not proof of lost revenue or poor care.
Use the benchmark
Score a dental website against the same framework
The state benchmark describes a cohort, not an individual practice. Run a free score to inspect the public website signals detected for one practice.