Your HubSpot Marketing Hub is doing more than you think. Behind every campaign you launch, there are email templates accumulating performance data, forms capturing (or losing) leads, CTAs competing for clicks, and attribution models quietly deciding which channels get credit for revenue. The question is whether all of those moving parts are actually working well or just working.
Most marketing teams set up their HubSpot assets, launch campaigns, and move on to the next initiative. Over months and years, the Marketing Hub becomes a graveyard of underperforming email templates, forms with 2% conversion rates nobody has revisited, and dozens of CTAs that stopped being relevant two product launches ago. This accumulated debt does not just clutter your portal. It actively drags down your marketing performance.
A Marketing Hub audit puts every asset under the microscope. This guide covers a systematic approach to reviewing your emails, forms, CTAs, A/B tests, and campaign attribution, with specific benchmarks and action steps to turn audit findings into measurable improvements.
Email Deliverability Review: The Foundation of Everything
Nothing else in your Marketing Hub matters if your emails are not reaching inboxes. Deliverability is the foundation, and it degrades gradually enough that most teams do not notice until open rates have already cratered.
Key Deliverability Metrics to Audit
Pull your email health report from Marketing > Email > Health and review these metrics across the last 90 days:
| Metric | Healthy Threshold | Red Flag | Action If Red Flag |
|---|---|---|---|
| Bounce rate | Below 2% | Hard bounces above 0.5% | Scrub list, remove invalid emails |
| Spam complaint rate | Below 0.1% | Any reading above 0.1% | Review content, check consent |
| Unsubscribe rate | 0.2–0.5% per send | Consistently above 0.5% | Audit frequency and relevance |
| Deliverability rate | Above 95% | Below 90% | Fix authentication, warm IP |
Domain Authentication Check
Verify that your sending domain has proper authentication configured:
- ✓SPF record correctly includes HubSpot's sending servers
- ✓DKIM signing is enabled and passing validation
- ✓DMARC policy is set to at least
p=quarantine(ideallyp=reject) - ✓Custom tracking domain is configured to avoid shared IP reputation issues
If your domain authentication is misconfigured, every other optimization in this audit will have limited impact. Resolve SPF, DKIM, and DMARC issues before moving on.
Sending Reputation Assessment
HubSpot assigns a sending reputation score to your portal. Check this under Settings > Marketing > Email. If your reputation is anything less than “Good,” investigate the root causes before sending additional campaigns. Common culprits include:
- Sending to purchased or scraped email lists
- Not removing hard bounces promptly
- Emailing contacts who have not engaged in 12+ months
- Sudden volume spikes that trigger ISP throttling
A declining sending reputation is often linked to broader CRM data quality issues. Cleaning up your contact database frequently resolves deliverability problems.
Email Template Performance Analysis
With deliverability confirmed, shift your attention to how individual email templates and campaigns are performing.
Template Inventory and Classification
Start by categorizing every email template in your portal:
Active Templates
Currently used in campaigns or workflows. These are your audit focus — evaluate every one against performance benchmarks.
Inactive Templates
Not sent in the last 90 days. Determine if they serve a seasonal purpose or are simply forgotten clutter.
Legacy Templates
Using outdated design systems or deprecated modules. These create brand inconsistency and should be replaced.
Test Templates
Created for internal testing and never cleaned up. Remove them to reduce clutter and avoid accidental sends.
Most portals have 3-5 times more email templates than they actually need. This clutter makes it harder for your team to find the right template and increases the risk of someone accidentally using an outdated version.
Performance Benchmarking
For every active email template, evaluate against these benchmarks:
| Metric | Poor | Average | Good | Excellent |
|---|---|---|---|---|
| Open Rate | <15% | 15–25% | 25–35% | >35% |
| Click Rate | <1% | 1–3% | 3–5% | >5% |
| Click-to-Open Rate | <8% | 8–12% | 12–18% | >18% |
| Unsubscribe Rate | >1% | 0.5–1% | 0.2–0.5% | <0.2% |
Templates consistently performing in the “Poor” column should be redesigned or retired. Pay special attention to click-to-open rate (CTOR), which isolates content engagement from subject line performance and gives you a clearer signal about template effectiveness.
Subject Line Pattern Analysis
Review the subject lines of your top 20 and bottom 20 emails by open rate. Look for patterns:
- Do question-based subject lines outperform declarative ones?
- What character length correlates with highest opens?
- Do personalization tokens (first name, company name) improve performance?
- Are preview text lines being used effectively or left blank?
These patterns inform a data-driven subject line strategy rather than relying on instinct. Document winning patterns in a shared playbook so every team member can apply them.
Form Conversion Optimization
Forms are where marketing effort converts to pipeline. Yet most teams create a form, embed it on a page, and never revisit its performance. A form audit identifies conversion leaks and opportunities to capture more leads with less friction.
Form Inventory Assessment
Navigate to Marketing > Lead Capture > Forms and audit your complete form inventory:
We routinely see portals with 50-100 forms where only 15-20 are actively converting. The rest are clutter that confuses your team and fragments your data.
Conversion Rate Analysis by Form
For each active form, calculate the conversion rate: submissions divided by views. Benchmark your forms against these ranges:
| Form Type | Average CVR | Excellent CVR | Common Fix for Low CVR |
|---|---|---|---|
| Pop-up forms | 3–5% | 8%+ | Improve timing trigger and offer relevance |
| Embedded landing page forms | 20–30% | 40%+ | Reduce fields, strengthen value proposition |
| Inline blog forms | 1–3% | 5%+ | Match offer to content topic |
| Exit-intent forms | 2–4% | 7%+ | Use urgency copy and specific offers |
Forms performing significantly below these ranges deserve attention.
Field-by-Field Friction Analysis
Every form field is a potential abandonment point. Audit each form for:
- ✓Field count: No more than 4–5 fields on top-of-funnel forms
- ✓Field types: Dropdowns and radio buttons used where appropriate
- ✓Progressive profiling: Smart fields ask returning visitors different questions
- ✓Required vs. optional: Non-essential fields are not marked required
- ✓Mobile responsiveness: Forms display and function correctly on mobile
- ✗Free text overuse: Open text fields where structured inputs would improve data quality
- ✗Hidden fields missing: UTM parameters and campaign source not captured
Follow-Up Workflow Validation
A form submission is only valuable if the follow-up works. For each form, verify:
- The thank you page or inline message is current and relevant
- Any connected workflow triggers correctly (enrollment, email sends, property updates)
- Lead assignment rules route submissions to the right team member
- Notification emails are being sent and received
Broken follow-up workflows are surprisingly common and directly impact lead response time. If your workflows need attention, address that as part of this audit.
CTA Audit: Active, Archived, and Everything In Between
HubSpot CTAs (calls-to-action) are the buttons and banners embedded across your website, blog, and emails. Over time, CTA libraries become bloated with outdated offers, broken links, and competing calls-to-action that dilute each other’s effectiveness.
CTA Inventory Classification
Review your complete CTA library under Marketing > Lead Capture > CTAs and classify each one:
| Classification | Definition | Action |
|---|---|---|
| Active & performing | Generating clicks and conversions | Monitor and optimize |
| Active but underperforming | Live with CTR below 1% | Redesign or reposition |
| Active but irrelevant | Promoting expired offers or events | Replace immediately |
| Archived | Previously active, now hidden | Review for permanent deletion |
| Orphaned | Created but never placed on any page | Delete |
Click-Through Rate Benchmarking
For active CTAs, evaluate click-through rates (CTR):
1–3% CTR Average
Full-width banners at the top or bottom of pages. Effective for high-visibility promotions but prone to banner blindness over time.
0.5–1.5% CTR Average
Placed alongside blog content or resource pages. Lower visibility but consistent exposure for recurring visitors.
2–5% CTR Average
Embedded within body copy as hyperlinked text. Highest engagement because they appear contextually relevant to the reader.
1–4% CTR Average
Triggered on scroll depth or time on page. Strong performance when the timing aligns with content consumption patterns.
CTAs with CTR below half the average for their type should be redesigned, repositioned, or replaced.
CTA Placement and Relevance Audit
- ✓Page context: CTA is relevant to the content of the page where it appears
- ✓Offer currency: The linked offer is still available and up to date
- ✓Destination URL: The link works and the landing page still exists
- ✓Visual consistency: CTA matches current brand guidelines
- ✗Competing CTAs: Multiple CTAs on the same page competing for attention
A single page with three different CTAs promoting three different offers will convert worse than a page with one focused, relevant call-to-action. Consolidation almost always improves performance.
A/B Test Review and Learnings Extraction
Many Marketing Hub users run A/B tests but fail to systematically extract and apply the learnings. An audit should review not just active tests but your historical testing program.
Active Test Review
For any currently running A/B tests, verify:
- Statistical significance: Has the test run long enough with sufficient volume to produce reliable results? HubSpot’s built-in significance calculator helps, but a minimum of 1,000 sends per variant is recommended for email tests.
- Test isolation: Are you testing one variable at a time, or are multiple changes muddled together?
- Winner selection: Is HubSpot set to automatically select the winner, and is the confidence threshold appropriate (95% minimum)?
Historical Test Pattern Analysis
Pull the results of every A/B test run in the past 12 months and look for cumulative learnings:
- Which subject line approaches consistently win?
- Do longer or shorter emails perform better for your audience?
- What CTA button colors, sizes, or copy drive the most clicks?
- Do personalized send times outperform fixed send times?
Document these learnings in a shared testing playbook. This prevents your team from re-testing hypotheses that have already been resolved and accelerates future optimization.
Identifying Testing Gaps
Your audit should also flag areas where A/B testing is not happening but should be:
High-traffic landing pages with no form tests, email sequences with no subject line variations, CTAs that have never been tested against alternatives, and send time optimization that has not been validated for your specific audience segments.
Campaign Attribution Accuracy Assessment
Attribution is where marketing performance measurement either succeeds or falls apart. If your attribution model is misconfigured, you are making budget decisions based on flawed data.
Attribution Model Review
HubSpot offers multiple attribution models. Audit which model you are using and whether it aligns with your marketing strategy:
| Model | Best For | Blind Spot |
|---|---|---|
| First touch | Understanding what drives awareness | Ignores nurturing and closing efforts |
| Last touch | Understanding what converts | Under-credits awareness activities |
| Linear | Balanced reporting (good default) | Dilutes credit so no channel looks impactful |
| U-shaped | B2B organizations (recommended start) | Under-weights mid-funnel nurturing |
| W-shaped | Longer sales cycles | Complex to interpret for smaller teams |
| Full path | Enterprise sales motions | Requires complete tracking infrastructure |
If you are using first-touch attribution to evaluate bottom-of-funnel campaigns or last-touch to evaluate brand awareness spend, your data is misleading your decisions.
Tracking Code Verification
Verify that HubSpot tracking is properly installed and functioning:
- ✓HubSpot tracking code present on all website pages (not just HubSpot-hosted)
- ✓UTM parameters consistently applied across all campaign URLs
- ✓Cross-domain tracking configured if you operate multiple domains
- ✓Ad tracking pixels properly connected for paid channels
- ✓Cookie consent implementation not blocking tracking for opted-in visitors
Revenue Attribution Validation
For deals that closed in the last quarter, spot-check the attribution data:
- Select 10 closed-won deals at random
- Review the full contact timeline for each associated contact
- Verify that every marketing touchpoint is captured (no gaps)
- Confirm that the attributed campaign matches reality
- Check that revenue credit is distributed according to your chosen model
Discrepancies here indicate tracking gaps that need to be resolved. Accurate attribution is also a prerequisite for meaningful reporting audits, since reports built on flawed attribution data will always produce misleading conclusions.
Putting It All Together: Your Marketing Hub Audit Action Plan
A Marketing Hub audit generates a lot of findings. Organize them for maximum impact:
Quick Wins — Week 1-2
Archive or delete inactive email templates, forms, and CTAs. Fix broken CTA destination URLs. Correct domain authentication issues. Remove contacts with hard bounces from active lists.
Medium-Term Improvements — Month 1-2
Redesign underperforming email templates based on benchmark analysis. Optimize high-traffic forms by reducing fields and adding progressive profiling. Consolidate competing CTAs on key pages. Implement missing A/B tests.
Strategic Initiatives — Quarter
Overhaul attribution model if current model misrepresents channel performance. Build a testing playbook from historical A/B test results. Establish ongoing monitoring dashboards. Create governance standards for new asset creation.
This audit pairs naturally with a broader portal audit that covers workflows, data quality, and integrations. Tackling them together ensures improvements in one area are not undermined by issues in another.
How Jetstack Accelerates Marketing Hub Audits
A thorough Marketing Hub audit can take a marketing operations team 15-20 hours of manual review. Jetstack’s audit solutions automate the data collection and benchmarking phases, letting your team focus on strategy and execution rather than spreadsheet analysis.
What Jetstack Scans Automatically
Email performance metrics and deliverability health, form conversion rates across all form types, CTA click-through data and placement analysis, attribution model configuration and tracking code integrity — all benchmarked against industry standards and compiled into a prioritized action report.
Whether you need a standalone Marketing Hub review or a comprehensive portal assessment, explore our options in the Jetstack Marketplace or reach out to our team to scope a custom engagement.
Frequently Asked Questions
How long does a HubSpot Marketing Hub audit take?
A manual audit of a mid-sized portal (50-100 email templates, 30-50 forms, 40-60 CTAs) typically takes 15-20 hours when done thoroughly. This includes data collection, analysis, benchmarking, and documentation of recommendations. Automated tools like Jetstack can reduce the data collection phase to minutes, though strategic analysis still requires human judgment.
How often should I audit my Marketing Hub?
Conduct a comprehensive Marketing Hub audit twice per year. Between full audits, run monthly spot checks on email deliverability metrics and quarterly reviews of form conversion rates and CTA performance. If you are planning a portal migration, conduct an audit before the move to avoid migrating underperforming assets.
What is the most common issue found in Marketing Hub audits?
Asset bloat. The majority of portals we audit have 2-4 times more email templates, forms, and CTAs than they actively use. This clutter slows down team productivity, makes it harder to maintain brand consistency, and increases the likelihood of sending outdated content. Archiving or deleting unused assets is almost always the highest-impact quick win.
Should I archive or delete old email templates?
Archive templates that you might reference later for design patterns or copy inspiration. Delete templates that are clearly outdated, duplicated, or were created for testing purposes. HubSpot does not count archived templates toward any limits, so archiving is a safe default when you are unsure.
Can a Marketing Hub audit improve my email deliverability?
Yes, directly. Most deliverability issues stem from list hygiene problems (sending to invalid or disengaged contacts), domain authentication gaps, or sending pattern issues, all of which a thorough audit identifies. We have seen portals improve their inbox placement rate by 15-25% after implementing audit recommendations.
How does a Marketing Hub audit relate to a full portal audit?
A Marketing Hub audit is one component of a comprehensive portal audit. The full audit also covers CRM data quality, workflow efficiency, integration health, sales pipeline configuration, and reporting accuracy. Marketing Hub findings often reveal issues that extend into other areas, so the audits complement each other.