200 Top SEO Ranking Factors September 2026

TOP SEO Factors for 2026-09 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Referring Domains Authority	-0.33	619	71	30 %	98 %
2	Number of Backlinks Authority	-0.33	134088	3960	30 %	97 %
3	Number of Images Size	-0.32	67	25	52 %	87 %
4	Number of Do Follow Backlinks Authority	-0.31	133206	3798	27 %	98 %
5	Number of Unique LSI Words Used Diversity	-0.31	908	308	70 %	72 %
6	Search Result Domain is .com, .net, or .org Other	-0.31	1	1	8 %	87 %
7	Search Result Domain is .com Other	-0.31	1	1	7 %	86 %
8	Number of No Follow Backlinks Authority	-0.3	1084	130	21 %	96 %
9	Has Meta Charset Technology	-0.3	1	1	53 %	85 %
10	Number of Images with ALT Text Size	-0.29	53	18	49 %	90 %
11	Number of P Tags Size	-0.28	98	36	52 %	89 %
12	Number of H1 Tags Size	-0.28	4	1	51 %	89 %
13	Word Count Size	-0.28	8520	1522	68 %	94 %
14	Load Time Milliseconds Performance	-0.28	20510	2828	67 %	89 %
15	Clean Text Kilobytes Size	-0.28	61	13	53 %	96 %
16	Number of Heading Tags Size	-0.28	39	18	55 %	90 %
17	Unabridged Word Count Size	-0.28	10269	1847	68 %	95 %
18	Number of HTML Tags Size	-0.27	2216	934	68 %	90 %
19	Search Result Number of Dirs in Path Other	-0.27	3	2	61 %	86 %
20	Number of Images without ALT Text Size	-0.27	21	8	37 %	88 %
21	Number of Top 200 Shared Factors Used Diversity	-0.27	50	32	79 %	82 %
22	Number of Top 50 Shared Factors Used Diversity	-0.26	16	10	79 %	78 %
23	Number of H2 Tags Size	-0.26	11	6	49 %	87 %
24	Number of Top 100 Shared Factors Used Diversity	-0.26	38	25	79 %	80 %
25	Number of Factors Used Diversity	-0.26	396	171	81 %	72 %
26	Number of Internal Links Authority	-0.26	312	101	61 %	88 %
27	Number of HTML Comments Size	-0.26	477	59	50 %	88 %
28	Number of HTTPS Links Authority	-0.26	335	116	63 %	93 %
29	Number of Links Authority	-0.25	336	117	63 %	92 %
30	Number of DoFollow Links Authority	-0.25	333	114	63 %	94 %
31	Average Words Per Sentence Size	-0.25	242	26	59 %	90 %
32	Has JSON-LD Schema Markup Relevancy	-0.24	1	1	36 %	78 %
33	Page Size Kilobytes Size	-0.24	788	303	66 %	55 %
34	Variations in P Tags Relevancy	-0.24	1658	52	44 %	87 %
35	Variations in H1, H2, and H3 Tags Relevancy	-0.24	118	8	42 %	77 %
36	Variations in H1-H6 Tags Relevancy	-0.24	173	10	44 %	79 %
37	Number of Unique Variations Used Diversity	-0.24	25	10	60 %	63 %
38	Number of H3 Tags Size	-0.24	18	8	41 %	88 %
39	Number of Includes Technology	-0.23	54	23	61 %	78 %
40	LSI Words in Sentences Relevancy	-0.23	3764	681	49 %	92 %
41	Search Result Host Length Size	-0.23	22	16	65 %	76 %
42	Has Form Technology	-0.23	1	1	31 %	78 %
43	Search Result Uses HTTPS Other	-0.23	1	1	63 %	69 %
44	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.23	4	2	32 %	73 %
45	Leading Variations in H1-H6 Tags Relevancy	-0.23	5	2	34 %	73 %
46	Variations in LI Tags Relevancy	-0.23	734	31	45 %	86 %
47	Search Result Domain Length Size	-0.23	22	16	65 %	78 %
48	Variations in Div Tags Relevancy	-0.23	22029	321	52 %	85 %
49	Variations in A Tags Relevancy	-0.23	2514	48	43 %	78 %
50	Variations in H1 and H2 Tags Relevancy	-0.23	71	5	42 %	77 %
51	Number of Forms Technology	-0.22	6	2	34 %	85 %
52	Variations in ALT Attributes Relevancy	-0.22	106	7	30 %	80 %
53	Flesch Kincaid Reading Grade Level Other	-0.22	6	1	77 %	91 %
54	Variations in Span Tags Relevancy	-0.22	364	13	33 %	78 %
55	Inline JavaScript Kilobytes Size	-0.22	353	117	60 %	49 %
56	Percentage of DoFollow Internal Links Authority	-0.22	87	60	59 %	78 %
57	Number of External Links Authority	-0.22	38	16	59 %	96 %
58	Number of CSS Includes Technology	-0.21	21	8	57 %	65 %
59	Number of Facebook Pages Authority	-0.21	4	2	38 %	87 %
60	Variations in H1 Tags Relevancy	-0.21	11	1	38 %	78 %
61	Variations in Search Result Document File Name Relevancy	-0.21	7	1	34 %	80 %
62	Term Frequency Relevancy	-0.21	6	3	59 %	68 %
63	Uses JSON-LD name Other	-0.21	1	1	39 %	78 %
64	Search Result Summary Length Size	-0.21	154	146	80 %	68 %
65	Number of DoFollow External Links Authority	-0.21	36	15	58 %	97 %
66	Has Meta Robots Other	-0.21	1	1	20 %	75 %
67	Number Of JSON-LD Types Relevancy	-0.21	38	13	40 %	84 %
68	Number of Absolute URLs Authority	-0.21	523	225	64 %	62 %
69	Variations in Search Result URL Path Relevancy	-0.21	6	1	34 %	78 %
70	Number of Sentences Size	-0.21	327	125	66 %	85 %
71	Variations in Body Tags Relevancy	-0.2	97091	1334	62 %	76 %
72	Number of Social Pages Authority	-0.2	12	4	44 %	88 %
73	Percentage of DoFollow Links Authority	-0.2	99	78	63 %	75 %
74	Number of Instagram Pages Authority	-0.2	11	2	29 %	88 %
75	Number of JavaScript Includes Technology	-0.2	40	16	62 %	81 %
76	Variations in H2 Tags Relevancy	-0.2	61	4	35 %	75 %
77	Number of Facebook Accounts Authority	-0.2	2	1	17 %	81 %
78	Number of Social Accounts Authority	-0.2	3	2	27 %	89 %
79	Has Meta Viewport Technology	-0.2	1	1	63 %	74 %
80	Variations in HTML Tags Relevancy	-0.2	97091	1290	60 %	79 %
81	Has Privacy Policy Trust	-0.2	1	1	38 %	76 %
82	Has Apple Touch Icon Technology	-0.2	1	1	35 %	76 %
83	Has US Phone Number Trust	-0.19	1	1	26 %	84 %
84	Variation Count in Top 30KB Relevancy	-0.19	6580	86	48 %	85 %
85	Number of US Phone Numbers Trust	-0.19	108	8	28 %	88 %
86	Entities in Sentences Relevancy	-0.19	600	130	46 %	94 %
87	Percentage of DoFollow External Links Authority	-0.19	30	15	57 %	69 %
88	Number of Questions In Headings Size	-0.19	5	2	28 %	84 %
89	Variations in Sentences Relevancy	-0.19	1695	61	54 %	79 %
90	Inline CSS Kilobytes Size	-0.19	112	54	52 %	82 %
91	Has Contact Page Trust	-0.19	1	1	35 %	62 %
92	Uses JSON-LD description Other	-0.19	1	1	30 %	69 %
93	Entities in the HTML Tag Relevancy	-0.19	687	135	50 %	93 %
94	LSI Words in H1 Tags Relevancy	-0.19	9	4	40 %	90 %
95	Variations in Search Result URL Relevancy	-0.19	13	2	41 %	71 %
96	Uses JSON-LD url Other	-0.19	1	1	36 %	81 %
97	Number of LinkedIn Pages Authority	-0.19	3	1	20 %	81 %
98	LSI Words in H2 Tags Relevancy	-0.19	48	16	38 %	86 %
99	Variations in Main Tags Relevancy	-0.19	9831	157	26 %	87 %
100	Variations in A Tag HREF Attributes Relevancy	-0.19	1082	44	38 %	80 %
101	Variations in H3 Tags Relevancy	-0.19	14	3	28 %	76 %
102	Headings Has Question Other	-0.19	1	1	29 %	84 %
103	Variations in Section Tags Relevancy	-0.18	899	29	28 %	87 %
104	Exact Matches in H1-H6 Tags Relevancy	-0.18	6	1	16 %	68 %
105	Variations in Meta Description Relevancy	-0.18	44	2	41 %	60 %
106	Number of Questions Size	-0.18	36	12	53 %	59 %
107	Uses Schema organization Other	-0.18	1	1	24 %	76 %
108	Number Of Claimed Brands Other	-0.18	7	2	17 %	75 %
109	Is Home Page Other	-0.18	1	1	9 %	57 %
110	Variations in Nav Tags Relevancy	-0.18	3481	64	33 %	74 %
111	Uses JSON-LD mainEntity Other	-0.18	1	1	1 %	25 %
112	Exact Matches in Top 30KB Relevancy	-0.18	5	2	15 %	65 %
113	Exact Matches in the HTML Tag Relevancy	-0.18	324	13	24 %	73 %
114	Has Schema Markup Relevancy	-0.18	1	1	49 %	56 %
115	Title Word Count Size	-0.18	14	8	66 %	60 %
116	Title Length Size	-0.18	93	48	64 %	57 %
117	Number of Distinct Entities Used Diversity	-0.18	60	21	52 %	92 %
118	Variations in Distinct A Tag HREF Attributes Relevancy	-0.18	789	28	40 %	84 %
119	Number of Nofollow Links Authority	-0.18	20	3	16 %	84 %
120	Variations in Absolute URLs Relevancy	-0.18	6009	111	43 %	79 %
121	Uses JSON-LD Organization Other	-0.18	1	1	24 %	75 %
122	Has HREF Lang Technology	-0.18	1	1	8 %	72 %
123	Number of NoFollow External Links Authority	-0.18	7	2	12 %	86 %
124	Number of Twitter Accounts Authority	-0.18	2	1	12 %	88 %
125	Leading Variations in H1 Tags Relevancy	-0.18	1	1	21 %	74 %
126	Uses JSON-LD ListItem Other	-0.18	1	1	26 %	66 %
127	Is Article Page Other	-0.18	1	1	32 %	66 %
128	Variations in OpenGraph Title Relevancy	-0.18	3	1	39 %	47 %
129	Variations in the Title Tag Relevancy	-0.18	4	2	47 %	63 %
130	Number of H4 Tags Size	-0.17	12	3	23 %	86 %
131	Uses Schema url Other	-0.17	1	1	45 %	51 %
132	Uses JSON-LD BreadcrumbList Other	-0.17	1	1	25 %	67 %
133	Number of Prices Size	-0.17	484	112	53 %	77 %
134	Number of Email Addresses Trust	-0.17	9	3	33 %	70 %
135	Has Email Trust	-0.17	1	1	32 %	68 %
136	Uses Schema datemodified Other	-0.17	1	1	22 %	68 %
137	LSI Words in H3 Tags Relevancy	-0.17	72	17	33 %	89 %
138	Variations in Script Tags Relevancy	-0.17	29554	470	50 %	67 %
139	Has Terms of Service Trust	-0.17	1	1	28 %	72 %
140	Uses Schema webpage Other	-0.17	1	1	25 %	63 %
141	Uses JSON-LD datePublished Other	-0.17	1	1	24 %	76 %
142	Number of Questions In H3 Tags Size	-0.17	3	1	15 %	75 %
143	Entities in H1 Tags	-0.17	5	2	35 %	89 %
144	Uses Schema name Other	-0.17	1	1	47 %	55 %
145	Percentage of NoFollow Links Authority	-0.17	6	2	14 %	81 %
146	Uses JSON-LD WebPage Other	-0.17	1	1	24 %	62 %
147	Uses JSON-LD ImageObject Other	-0.17	1	1	23 %	71 %
148	Variations in the Canonical URL Relevancy	-0.17	39	2	34 %	76 %
149	Variations in OpenGraph Description Relevancy	-0.17	4	2	39 %	54 %
150	Uses JSON-LD dateModified Other	-0.17	1	1	23 %	70 %
151	Uses Schema searchaction Other	-0.17	1	1	15 %	61 %
152	Variations in First 100 Words Relevancy	-0.16	187	8	44 %	75 %
153	Variations in Footer Tags Relevancy	-0.16	4986	68	29 %	70 %
154	Has Entities in H1 Tags Relevancy	-0.16	1	1	35 %	86 %
155	Number of HREF Lang Tags Size	-0.16	12	2	8 %	77 %
156	Entities in H2 Tags	-0.16	20	5	34 %	91 %
157	Leading Variations in H2 Tags Relevancy	-0.16	3	1	20 %	72 %
158	Exact Matches in Title Tag Relevancy	-0.16	1	1	14 %	63 %
159	Is Store Page Other	-0.16	1	1	29 %	75 %
160	Has Meta Description Relevancy	-0.16	1	1	51 %	48 %
161	Clean Keyword Density in the HTML Tag Relevancy	-0.16	204	7	50 %	54 %
162	Number of Meta Generator Tags Technology	-0.16	2	1	23 %	63 %
163	Percentage of NoFollow External Links Authority	-0.16	3	1	10 %	85 %
164	Word Count in Meta Description Size	-0.16	24	17	54 %	54 %
165	Variations in Strong Tags Relevancy	-0.16	36	3	21 %	82 %
166	Uses JSON-LD SearchAction Other	-0.16	1	1	15 %	64 %
167	Is Category Page Other	-0.16	1	1	12 %	69 %
168	Uses Schema image Other	-0.16	1	1	14 %	79 %
169	Uses Schema website Other	-0.16	1	1	23 %	63 %
170	Uses Schema headline Other	-0.16	1	1	14 %	70 %
171	Entities in H3 Tags	-0.16	39	6	29 %	92 %
172	TF/IDF Relevancy	-0.16	1	1	40 %	74 %
173	Is OpenGraph Type Article Technology	-0.16	1	1	23 %	62 %
174	Has Entities in H2 Tags Relevancy	-0.16	1	1	34 %	88 %
175	Meta Description Length Size	-0.16	153	107	55 %	54 %
176	Leading Variations in Title Tag Relevancy	-0.15	1	1	25 %	68 %
177	Uses Microdata ratingCount Other	-0.15	1	1	1 %	22 %
178	Variation Density in Top 30KB Relevancy	-0.15	298	6	49 %	64 %
179	Variations in I Tags Relevancy	-0.15	109	4	13 %	80 %
180	Exact Matches in Sentences Relevancy	-0.15	209	6	18 %	71 %
181	Uses JSON-LD Person Other	-0.15	1	1	14 %	74 %
182	Uses Schema governmentorganization Other	-0.15	1	1	2 %	16 %
183	Uses Schema article Other	-0.15	1	1	8 %	64 %
184	Has OpenGraph Type Relevancy	-0.15	1	1	45 %	51 %
185	Has RSS Link Authority	-0.15	1	1	19 %	61 %
186	Uses Schema listitem Other	-0.15	1	1	35 %	39 %
187	Has Entities in H3 Tags Relevancy	-0.15	1	1	28 %	88 %
188	Uses Schema propertyvaluespecification Other	-0.15	1	1	12 %	54 %
189	Uses Schema valuename Other	-0.15	1	1	12 %	54 %
190	Variations Making Whole Span Tags Relevancy	-0.15	5	1	14 %	76 %
191	Uses Microdata AggregateRating Other	-0.15	1	1	1 %	24 %
192	Uses JSON-LD GovernmentOrganization Other	-0.15	1	1	2 %	15 %
193	Has Meta Keywords Relevancy	-0.15	1	1	10 %	37 %
194	Uses JSON-LD valueName Other	-0.15	1	1	12 %	55 %
195	Uses JSON-LD PropertyValueSpecification Other	-0.15	1	1	12 %	56 %
196	Variations making whole H1, H2, and H3 Tags Relevancy	-0.15	2	1	9 %	70 %
197	Uses Schema description Other	-0.15	1	1	40 %	45 %
198	Has Canonical URL Authority	-0.15	1	1	56 %	63 %
199	Has Google Verify Technology	-0.15	1	1	11 %	74 %
200	Has Copyright Trust	-0.15	1	1	41 %	49 %

Measures 154168 SEO Factors

152446 Built-In SEO Factors

143221 On-page SEO Factors

9225 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-09 previous