SEO.co
// seo.co

Durham SEO Agency

GET STARTEDSEO AUDIT SERVICES
200+
Ranking factors audited per page
01
15 yrs
Of search-algorithm operational history
02
5K+
Keywords moved into top-10 positions
03
F500
Clients alongside startups & agencies
04
// engineering methodology

How we engineer rankings.

A five-phase loop, repeated continuously. No black boxes — every step traceable to a measurable signal.

seo.co — process.ts
01
$ seo.audit()
Diagnose

200-point technical, content, and backlink audit. Core Web Vitals, crawl budget, schema, EAT signals — every lever measured before we touch a thing.

02
$ seo.strategy()
Cluster

Keyword universes mapped to topical authority pillars. Intent matched to content. Internal-link graph designed before a single page ships.

03
$ seo.execute()
Build

On-page implementation, schema rollout, content production, and white-hat link acquisition — coordinated across technical, editorial, and PR teams.

04
$ seo.measure()
Track

Position tracking, attribution modeling, conversion-funnel diagnostics. Weekly reports tied to revenue, not vanity metrics.

05
$ seo.optimize()
Iterate

Algorithm-update response within 48 hours. Competitive deltas surfaced in real time. Continuous remediation on the pages losing ground.

A Durham SEO Company Serving Clients Since 2010

Our mission at SEO.co is to help your business rank higher & easier in all major search engines than the competition—all while saving you time & money.We're Durham SEO experts or Durham SEO Services experts, and we use only the latest Internet Marketing techniques.

SEO.co was created to provide high-quality affordable SEO services to businesses in Durham North Carolina, Chatham County, Orange County, and all of North Carolina.

We focus on providing a trustworthy service backed by outranking your competitors in search engine results pages.

robots.txt// crawl directives
 1# Engineered for budget, not just access
 2User-agent: *
 3Allow:      /
 4Disallow:   /admin/
 5Disallow:   /*?session=
 6 
 7User-agent: GPTBot
 8Allow:      /
 9 
10Sitemap: /sitemap_index.xml

Why Durham Businesses Should Invest in Digital Marketing

If your business is not visible online it does not exist! This statement seems too extreme; however, it is becoming more the case every day. Search engine optimization (SEO) has never been more important than it is today.

To connect with potential customers and gain new business leads, you need a superb online marketing strategy. Digital marketing firm is the solution. It's affordable, it's flexible, and best of all, it's measurable.

By focusing on your objectives, we remove roadblocks and develop the system and strategy that can put your business ahead of your competitors in Google search.

Our proven search engine optimization (SEO) strategies are designed to build trust in your brand and make sure you stay on top of your business.

lighthouse-report.json// page audit
96
Performance
100
Accessibility
95
Best Practices
100
SEO

Serving Discerning Durham Businesses

Since 2010

schema-validator// structured-data status
Organization
valid
ProfessionalService
valid
FAQPage
valid
BreadcrumbList
valid
Article
valid
AggregateRating
valid
// ai-search visibility · GEO

Ranking is no longer just Google.

We track citation share across every major LLM-powered search interface. Client appearance rates across the surfaces our prospects actually use:

GPT
ChatGPT Search
01
82%citation share
PPL
Perplexity Pages
02
89%citation share
AIO
Google AI Overview
03
71%citation share
GEM
Gemini Search
04
64%citation share
CLD
Claude Citations
05
58%citation share
COP
Bing Copilot
06
73%citation share
// structured data

Schema-first because Google reads JSON, not paragraphs.

Rich results, knowledge panels, AI Overview citations, and LLM training data all key off structured markup. We deploy validated JSON-LD across every page, monitored for drift.

  • ▹30+ schema types covered (Organization, Service, FAQ, HowTo, Article…)
  • ▹Live Rich Results validation in CI
  • ▹Schema audit included in every engagement
schema.json
 1{
 2  "@context": "https://schema.org",
 3  "@type": "ProfessionalService",
 4  "name": "SEO.co",
 5  "areaServed": "United States",
 6  "aggregateRating": {
 7    "@type": "AggregateRating",
 8    "ratingValue": "4.9",
 9    "reviewCount": "312"
10  }
11}

Comprehensive SEO Research

Initially, we will conduct thorough research on your competitors and keywords and establish a general plan. This will include determining the specific terms and phrases you wish to prioritize, analyzing the strengths of your competitors, and devising strategies to surpass them.
gsc-coverage// index coverage · 30d
Indexed
1,842
Discovered
117
Excluded
28
Error
9

Technical On-Site SEO

To improve your site's chances of ranking higher on Google, ensure that it has a well-designed and efficient structure. This means making it easily accessible for Google's web crawlers, ensuring that it loads quickly for all visitors, and that it has a mobile-friendly layout, ideally with a responsive design.

keyword-clusters.csv// cluster intent
technical seo audit4.4K/mo
KD 38
core web vitals optimization1.9K/mo
KD 24
schema markup implementation2.7K/mo
KD 31
internal linking strategy3.1K/mo
KD 42
site speed optimization8.8K/mo
KD 55

Optimize Content

To establish your authority, grab attention, and attract links, make sure all of your onsite content is optimized for your target keywords. Use detailed and articulate language, including the right entity and LSI keywords in paragraphs and title tags.

robots.txt// crawl directives
 1# Engineered for budget, not just access
 2User-agent: *
 3Allow:      /
 4Disallow:   /admin/
 5Disallow:   /*?session=
 6 
 7User-agent: GPTBot
 8Allow:      /
 9 
10Sitemap: /sitemap_index.xml
// core web vitals · field data

Page speed is a ranking signal. We engineer it like one.

Field-data Core Web Vitals from a typical client page after our engagement. Real users, real conditions, measured against Google's thresholds.

Good · 90+
Needs work · 50–89
Largest Contentful Paint
LCP
1.8s
score 94
Cumulative Layout Shift
CLS
0.03
score 98
Interaction to Next Paint
INP
120ms
score 91
// the difference

What “technical” actually means.

Capability
SEO.co
Typical SEO agency
Technical audit depth
200+ checks · weekly
Single annual audit
Schema markup
30+ types, CI-validated
Hand-rolled, often broken
Core Web Vitals
Engineered to <2.5s LCP
Recommendation, not implementation
Reporting cadence
Live dashboard + weekly
Monthly PDF
Algorithm response
48-hour playbook
Wait-and-see
Content + links + tech
Single coordinated team
3 separate vendors
// algorithm response log

Every algorithm update has a playbook.

We don't wait-and-see. The last five years of major Google updates and the engineering response we executed for client sites within 48 hours of confirmation.

  1. 2024March Core Update
    impact: AI-content devaluation
    → Manual byline audits, EEAT enrichment, schema author overhaul
  2. 2024Helpful Content Update v3
    impact: Site-wide quality signal
    → Topical authority pruning, low-value page sunset playbook
  3. 2023October Core + SGE
    impact: AI Overview rollout
    → Citation-shape content, FAQ schema density, listicle restructuring
  4. 2022Product Reviews + Helpful Content
    impact: Affiliate / thin content
    → Original research investment, first-hand testing methodology
  5. 2021Page Experience + MUM
    impact: Web Vitals as ranking factor
    → Performance engineering pipeline, Lighthouse CI rollout
// operating stack

The platforms we run.

Six surfaces, dozens of tools, one team trained to read every signal each one produces. We don't pick favorites — we instrument everything.

Crawl & Audit
  • Screaming Frog
  • Sitebulb
  • Botify
  • JetOctopus
Backlinks
  • Ahrefs
  • Semrush
  • Majestic
  • Moz Pro
Search
  • Google Search Console
  • Bing Webmaster
  • Yandex Webmaster
Analytics
  • GA4
  • BigQuery
  • Looker Studio
  • Mixpanel
Performance
  • PageSpeed Insights
  • WebPageTest
  • Lighthouse CI
  • Calibre
AI Search
  • Perplexity Pages
  • ChatGPT Search
  • Profound
  • AthenaHQ
// frequently asked

Common questions

01On-page Analysis.
By analyzing individual pages and keywords using Google Analytics, Google Search Console (reviewing accelerated mobile pages), Core Web Vitals (reviewing page speed) and other keyword research tools, we create a detailed roadmap that is industry agnostic and fully-repeatable for ranking in search engines.
02Complete Content Audit.
Your on-site content audit will perform keyword research to compare all the pages of your site, taking into account content quality, duplicate content, keyword stuffing and keyword cannibalization issues that might be hurting your rankings in search engine results pages (SERPs).
03Holistic Backlink Audit.
Understand impact of site-wide and individual web pages with a comprehensive look at backlink diversity, link velocity, anchor text variability, TLD diversity, internal links and internal link structure.
04Determine Link-Worthy Assets.
We find the best content assets on your website, worthy of inbound mentions and backlinks. If you don't have any or your content is lacking, our editorial team can help to beef-up your content assets.
05Find Publishers that Match Your Strategy.
We source publishers with relevance and authority and pitch them content ideas that include backlinks and references back to your website.
06Write The Content.
We draft your written content, including relevant backlinks and anchor text that aligns with our keyword research tool analysis (e.g. title tags, meta tags, keyword density, etc.). We then get publisher approval to get the content published.
07Backlink Reporting.
You receive regular backlink reports included in your standard monthly SEO work reports.
08On-page Analysis.
By analyzing individual pages and keywords using Google Analytics, Google Search Console (reviewing accelerated mobile pages), Core Web Vitals (reviewing page speed) and other keyword research tools, we create a detailed roadmap that is industry agnostic and fully-repeatable for ranking in search engines.
09Complete Content Audit.
Your on-site content audit will perform keyword research to compare all the pages of your site, taking into account content quality, duplicate content, keyword stuffing and keyword cannibalization issues that might be hurting your rankings in search engine results pages (SERPs).
10Holistic Backlink Audit.
Understand impact of site-wide and individual web pages with a comprehensive look at backlink diversity, link velocity, anchor text variability, TLD diversity, internal links and internal link structure.
11Determine Link-Worthy Assets.
We find the best content assets on your website, worthy of inbound mentions and backlinks. If you don't have any or your content is lacking, our editorial team can help to beef-up your content assets.
12Find Publishers that Match Your Strategy.
We source publishers with relevance and authority and pitch them content ideas that include backlinks and references back to your website.
13Write The Content.
We draft your written content, including relevant backlinks and anchor text that aligns with our keyword research tool analysis (e.g. title tags, meta tags, keyword density, etc.). We then get publisher approval to get the content published.
14Backlink Reporting.
You receive regular backlink reports included in your standard monthly SEO work reports.
15On-page Analysis.
By analyzing individual pages and keywords using Google Analytics, Google Search Console (reviewing accelerated mobile pages), Core Web Vitals (reviewing page speed) and other keyword research tools, we create a detailed roadmap that is industry agnostic and fully-repeatable for ranking in search engines.
16Complete Content Audit.
Your on-site content audit will perform keyword research to compare all the pages of your site, taking into account content quality, duplicate content, keyword stuffing and keyword cannibalization issues that might be hurting your rankings in search engine results pages (SERPs).
17Holistic Backlink Audit.
Understand impact of site-wide and individual web pages with a comprehensive look at backlink diversity, link velocity, anchor text variability, TLD diversity, internal links and internal link structure.
// ready to engage

Ready to outrank the competition?

Get a tailored proposal from the team that's engineered search results for Fortune 500 companies, agencies, and startups since 2010.

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