Most businesses know their follower count. Fewer know their engagement rate. Almost none track click-through rate from social to website, or can tell you which post type drove the most leads last quarter. That’s the gap a social media audit closes — and it’s the difference between a social media presence that you manage by feel versus one you manage by data.
Here’s the exact audit process, what to measure, and what to do with what you find.
Why Audit Quarterly (Not Annually)
An annual review tells you what happened over a year. A quarterly review tells you what to do next quarter. The gap between those two is the difference between a retrospective and a working tool.
Social media moves fast enough that a quarterly cadence catches problems before they compound. An engagement rate drop that starts in January and isn’t noticed until December has caused 11 months of suboptimal content decisions. Caught in March, it gets investigated and fixed in April.
The quarterly audit also catches platform-level changes. When Instagram shifts its algorithm weighting — as it does several times per year — a quarterly audit shows the effect on your metrics and prompts a content strategy adjustment. Without the quarterly check, you might not notice until the change has materially affected your results for months.
The Five Metrics That Actually Matter
1. Engagement Rate
Engagement rate is your primary social media health metric. It normalizes engagement (likes, comments, shares, saves) against your reach or follower count, so it’s comparable across accounts of different sizes and over time.
Formula: (Total engagements ÷ Total reach) × 100
Or the simpler version: (Total engagements ÷ Followers) × 100
Industry benchmarks:
- Instagram: 1–3% is average, 3–6% is strong, under 1% is a warning
- LinkedIn: 1–2% is average, 2–4% is strong
- Facebook: 0.5–1% is typical for business pages due to reduced organic reach
- TikTok: 3–6% average (higher than other platforms)
If your engagement rate has dropped quarter-over-quarter, the cause is one of three things: content quality dropped, posting frequency changed (over-posting or under-posting both depress engagement rate), or the platform’s algorithm changed how it distributes your content.
2. Follower Growth Rate
Not the absolute number of followers — the growth rate. A rate of 5% per month means your audience is consistently expanding. A rate of 0.2% means something is wrong with your content or reach strategy.
Formula: ((New followers in period ÷ Followers at start of period) × 100)
Track it monthly and look at the quarterly trend. One slow month is noise. Three slow months is signal.
Also track net growth: followers gained minus followers lost. If you’re gaining 500 followers and losing 400, your net growth of 100 is much less impressive than the raw gain number suggests. Net growth shows you whether your content is building genuine audience or just generating churn.
3. Reach Per Post
How many unique accounts are seeing each post? This number tells you about platform distribution — whether the algorithm is serving your content beyond your existing followers.
Track average reach per post by format. This is where you discover that your carousels reach 800 accounts on average while your Reels reach 3,200. That’s an actionable finding: produce more Reels.
During your audit, pull reach data for each post type and calculate the average for each. Look for:
- Which format gets the highest average reach?
- Did your reach-per-post change this quarter vs. last quarter?
- Are there specific posts that dramatically outperformed the average? What did they have in common?
4. Click-Through Rate to Website
This is where most business social media audits stop gathering data, and where the most important business data lives. Reach and engagement are platform metrics. Click-through rate bridges social media and your actual business.
You need UTM-tagged links in your bio and in your posts to track this accurately. If you’re not UTM tagging your social links, your GA4 data can’t tell you which social posts drove website visits. Fix this before your next quarter starts.
In GA4, look at:
- Sessions from social media by platform
- Sessions from social media by campaign (using UTM parameters)
- Goal completions (contact form, lead form, purchase) attributed to social media traffic
This is the data that tells you whether your social media is generating business, not just followers.
5. Best-Performing Content Analysis
Pull your top 10 posts by engagement and your top 10 posts by reach for the quarter. They won’t be the same lists — some content gets strong engagement from existing followers without generating much new reach; other content gets wide reach without strong engagement from the people who see it.
Look for patterns:
- What topics appear in both lists?
- What formats appear most often?
- What length of caption correlates with high performance?
- What time of day or week were the best posts published?
- Are there common visual elements (color use, photo style, text overlay)?
These patterns are your content strategy inputs for next quarter.
Platform-by-Platform Audit Checklist
Instagram Audit
- Review follower count growth (net, not gross)
- Calculate average engagement rate for the quarter
- Break down average reach by format: Feed static, carousel, Reel, Story
- Identify top 5 posts by engagement and top 5 by reach
- Review bio: is the link current? Is the CTA aligned with current offer?
- Check profile: is the name field keyword-optimized? (See social media bio guide)
- Review hashtag performance: are you using relevant hashtags, or generic ones with 50M+ posts?
- Check Stories analytics: which story types get the most replies and link clicks?
LinkedIn Audit
- Check post impressions and engagement rate for the quarter
- Review follower growth on company page
- If using personal profile: check connection requests and profile views driven by content
- Identify top 3 posts by engagement rate
- Review profile: is the headline keyword-optimized? Is the About section current?
- Check if website traffic from LinkedIn changed quarter-over-quarter (GA4)
Facebook Audit
- Review page reach per post (accept that organic reach will be low)
- Check paid post performance if running boosted posts
- Review page health: are contact details, hours, and business info current?
- If running a Facebook Group: review member growth, engagement, and content performance
Cross-Platform Audit Items
- Which platform drove the most website traffic? (GA4)
- Which platform drove the most conversions? (GA4)
- Consistency check: do all platforms use the current logo, bio, and link destination?
- Review brand guidelines: is content consistent with the defined voice, colors, and tone?
What to Do With Your Findings
An audit without actions is just a report. After gathering the data, make three types of decisions:
Cut. What content type or platform is consuming time without producing results? If Facebook organic posts take 3 hours a month to produce and generate zero website traffic, that time is better spent elsewhere. Not every platform needs active management.
Double down. What’s working better than expected? If your LinkedIn text posts are generating 4% engagement rate, you should be posting more frequently and producing more content in that format.
Fix. What’s broken and fixable? A broken link in bio, an outdated service listed in the profile, inconsistent branding across platforms — these are audit findings with clear fixes.
Write out three action items per platform. No more than three. More than three items from a quarterly audit become an ongoing project rather than a quarterly correction.
Tools for Your Audit
Native analytics: Instagram Insights, LinkedIn Analytics, and Facebook Insights give you platform-specific data. They’re free and accurate. Start here.
Google Analytics 4: For website traffic attribution from social. Essential for understanding the business impact of your social media. Filter by source/medium to see social platform traffic.
Later, Buffer, or Hootsuite reports: If you’re scheduling with these tools, they generate consolidated reports across platforms. Useful for seeing everything in one view.
honest.designodin.com: Our Honest audit tool provides a structured audit framework for social presence alongside SEO, ads, and site health. If you want a starting point that covers multiple channels in one session, it’s faster than building the report manually.
Audit Frequency and the Annual Review
Quarterly audits drive ongoing decisions. At the end of the year, run one extended annual review that looks at the four quarterly reports together:
- What was the year-over-year growth in followers and engagement across platforms?
- Which platforms grew? Which declined?
- What content trends held up all year versus what worked briefly?
- What did you invest in social media (time, paid budget, content production), and what did the business get back?
The annual review is also when you decide whether to add or drop platforms, significantly change content strategy, or invest in tools that the quarterly audits suggested would help.
FAQ
How long does a social media audit take? A thorough quarterly audit takes 2–3 hours if your analytics access is set up correctly. The first audit takes longer because you’re often discovering what data you don’t have access to and setting up proper tracking. Once UTM parameters are in place and you know where to find each metric, subsequent audits are faster.
What engagement rate should I be aiming for? On Instagram, 3% or above is a strong account. On LinkedIn, 2% or above. These are benchmarks, not targets — a highly niche account with a very specific audience can have 6–8% engagement because the content is so relevant to a specific group. A large consumer brand might have 0.8% engagement because their audience is broad. Compare yourself to your own history first.
Should I audit platforms I’m not actively posting on? Yes, briefly. Check that the profile information is current, that you’re not missing inbound messages, and that the account isn’t being flagged for inactivity. Inactive accounts with outdated information create a poor first impression for anyone who finds them.
What if my analytics show a significant drop in performance? Investigate the timing. Did the drop start after you changed your posting frequency? After a specific post type was discontinued? After a known platform algorithm change? Align the timing of the metric drop with what changed in your strategy or on the platform. Most performance drops have a traceable cause.
How is a social media audit different from a social media strategy review? An audit is data collection and analysis. A strategy review is the decision-making process that follows. The audit tells you what happened. The strategy review tells you what to do next. You need both — an audit without strategy decisions is wasted effort; a strategy change without audit data is guesswork.
What should be in my audit report if I’m reporting to someone else? Cover: follower growth, average engagement rate, reach per post by format, website traffic from social, and top 5 posts. That’s the executive summary. Supplement with detailed platform breakdowns and recommended actions. Keep the summary to one page — decision-makers need the highlights, not the raw data.
If you want your audit done for you, Honest covers social presence alongside SEO and ads in one session. For ongoing managed social — strategy, content, and quarterly reporting — see our social media management service. Get started to see the packages.