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 Backlinks Authority	-0.34	134088	5290	31 %	96 %
2	Number of Referring Domains Authority	-0.34	619	84	31 %	97 %
3	Search Result Domain is .com Other	-0.33	1	1	9 %	82 %
4	Search Result Domain is .com, .net, or .org Other	-0.33	1	1	9 %	82 %
5	Number of Do Follow Backlinks Authority	-0.33	133206	5064	28 %	97 %
6	Number of Images Size	-0.31	67	27	50 %	85 %
7	Number of No Follow Backlinks Authority	-0.31	1084	162	22 %	96 %
8	Number of Unique LSI Words Used Diversity	-0.31	908	303	68 %	79 %
9	Has Meta Charset Technology	-0.29	1	1	50 %	82 %
10	Load Time Milliseconds Performance	-0.29	20510	3240	64 %	85 %
11	Word Count Size	-0.28	4415	1497	66 %	92 %
12	Number of Images without ALT Text Size	-0.28	21	9	36 %	88 %
13	Number of P Tags Size	-0.28	98	36	51 %	86 %
14	Clean Text Kilobytes Size	-0.28	34	12	52 %	96 %
15	Unabridged Word Count Size	-0.28	5346	1801	66 %	93 %
16	Number of H1 Tags Size	-0.28	4	1	49 %	86 %
17	Number of Images with ALT Text Size	-0.28	53	18	48 %	89 %
18	Search Result Number of Dirs in Path Other	-0.27	3	2	60 %	86 %
19	Number of Heading Tags Size	-0.27	39	19	53 %	88 %
20	Number of HTML Tags Size	-0.27	2216	979	66 %	90 %
21	Number of HTML Comments Size	-0.26	477	70	48 %	84 %
22	Number of Factors Used Diversity	-0.26	396	170	79 %	68 %
23	Number of Internal Links Authority	-0.26	312	105	59 %	89 %
24	Number of Top 50 Shared Factors Used Diversity	-0.26	16	10	76 %	75 %
25	LSI Words in Sentences Relevancy	-0.26	3764	768	52 %	90 %
26	Number of HTTPS Links Authority	-0.25	335	123	61 %	95 %
27	Number of Links Authority	-0.25	336	124	61 %	92 %
28	Number of H2 Tags Size	-0.25	11	6	48 %	85 %
29	Number of Top 200 Shared Factors Used Diversity	-0.25	50	32	76 %	81 %
30	Number of DoFollow Links Authority	-0.25	333	121	62 %	96 %
31	Variations in P Tags Relevancy	-0.25	1658	59	43 %	84 %
32	Number of Top 100 Shared Factors Used Diversity	-0.24	38	24	76 %	79 %
33	Average Words Per Sentence Size	-0.24	242	27	57 %	90 %
34	Page Size Kilobytes Size	-0.24	788	305	64 %	55 %
35	Has JSON-LD Schema Markup Relevancy	-0.24	1	1	34 %	78 %
36	Search Result Host Length Size	-0.24	22	15	62 %	75 %
37	Number of Unique Variations Used Diversity	-0.24	25	9	58 %	60 %
38	Variations in H1, H2, and H3 Tags Relevancy	-0.23	118	9	41 %	75 %
39	Variations in A Tags Relevancy	-0.23	2514	58	41 %	79 %
40	Number of H3 Tags Size	-0.23	18	8	40 %	84 %
41	Variations in Span Tags Relevancy	-0.23	364	16	33 %	74 %
42	Number of Includes Technology	-0.23	54	22	57 %	78 %
43	Search Result Domain Length Size	-0.23	22	15	63 %	78 %
44	Term Frequency Relevancy	-0.23	6	3	59 %	62 %
45	Variations in Div Tags Relevancy	-0.23	22029	419	51 %	82 %
46	Has Form Technology	-0.23	1	1	31 %	75 %
47	Variations in H1-H6 Tags Relevancy	-0.23	173	10	42 %	78 %
48	Variations in LI Tags Relevancy	-0.23	734	35	44 %	86 %
49	Search Result Uses HTTPS Other	-0.23	1	1	59 %	67 %
50	Has Meta Robots Other	-0.23	1	1	20 %	70 %
51	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.22	4	2	30 %	74 %
52	Leading Variations in H1-H6 Tags Relevancy	-0.22	5	2	33 %	74 %
53	Number of Forms Technology	-0.22	6	2	34 %	81 %
54	Number of CSS Includes Technology	-0.22	21	9	54 %	59 %
55	Flesch Kincaid Reading Grade Level Other	-0.22	6	1	76 %	93 %
56	Variations in Search Result Document File Name Relevancy	-0.22	7	1	33 %	81 %
57	Variations in H1 and H2 Tags Relevancy	-0.22	71	5	40 %	77 %
58	Variations in ALT Attributes Relevancy	-0.22	106	7	29 %	82 %
59	Inline JavaScript Kilobytes Size	-0.22	353	116	59 %	49 %
60	Variations in Search Result URL Path Relevancy	-0.22	6	1	32 %	78 %
61	Search Result Summary Length Size	-0.22	153	146	78 %	70 %
62	Number of External Links Authority	-0.21	38	17	57 %	96 %
63	Number of Sentences Size	-0.21	327	129	63 %	79 %
64	Percentage of DoFollow Internal Links Authority	-0.21	87	59	57 %	77 %
65	Number of DoFollow External Links Authority	-0.21	36	16	57 %	96 %
66	Number of Absolute URLs Authority	-0.21	523	237	61 %	60 %
67	LSI Words in H1 Tags Relevancy	-0.21	9	4	41 %	86 %
68	Number of Facebook Pages Authority	-0.21	4	2	38 %	86 %
69	Variations in H1 Tags Relevancy	-0.21	11	1	37 %	78 %
70	Uses JSON-LD name Other	-0.21	1	1	37 %	77 %
71	Number of Instagram Pages Authority	-0.2	10	2	28 %	85 %
72	Number of Facebook Accounts Authority	-0.2	2	1	17 %	81 %
73	LSI Words in H2 Tags Relevancy	-0.2	48	16	39 %	82 %
74	Number of Social Pages Authority	-0.2	12	5	43 %	85 %
75	Variations in Body Tags Relevancy	-0.2	97091	1776	60 %	77 %
76	Variations in HTML Tags Relevancy	-0.2	97091	1776	60 %	77 %
77	Variations in Sentences Relevancy	-0.2	1695	72	54 %	75 %
78	Has Privacy Policy Trust	-0.2	1	1	37 %	74 %
79	Number of JavaScript Includes Technology	-0.2	40	16	60 %	79 %
80	Has Meta Viewport Technology	-0.2	1	1	59 %	70 %
81	Has Contact Page Trust	-0.2	1	1	34 %	58 %
82	Variation Count in Top 30KB Relevancy	-0.2	6580	111	47 %	86 %
83	Number Of JSON-LD Types Relevancy	-0.2	38	12	38 %	81 %
84	Variations in H2 Tags Relevancy	-0.2	61	4	34 %	74 %
85	Exact Matches in Top 30KB Relevancy	-0.2	4	2	14 %	63 %
86	Variations in Section Tags Relevancy	-0.2	899	33	27 %	85 %
87	Number of LinkedIn Pages Authority	-0.2	3	1	20 %	84 %
88	Variations in Script Tags Relevancy	-0.19	29554	664	50 %	63 %
89	Percentage of DoFollow Links Authority	-0.19	99	77	61 %	75 %
90	Number of Questions Size	-0.19	36	12	52 %	55 %
91	Uses JSON-LD mainEntity Other	-0.19	1	1	1 %	27 %
92	Has Terms of Service Trust	-0.19	1	1	29 %	73 %
93	Variations in Search Result URL Relevancy	-0.19	13	2	40 %	75 %
94	LSI Words in H3 Tags Relevancy	-0.19	72	20	34 %	86 %
95	Variations in the Title Tag Relevancy	-0.19	4	2	47 %	56 %
96	Entities in Sentences Relevancy	-0.19	600	143	44 %	92 %
97	Variations in Main Tags Relevancy	-0.19	9831	195	25 %	88 %
98	Has Apple Touch Icon Technology	-0.19	1	1	33 %	74 %
99	Clean Keyword Density in the HTML Tag Relevancy	-0.19	204	8	46 %	49 %
100	Number of Questions In Headings Size	-0.19	5	2	28 %	79 %
101	Number of Social Accounts Authority	-0.19	3	2	26 %	89 %
102	Percentage of DoFollow External Links Authority	-0.19	30	15	55 %	68 %
103	Entities in the HTML Tag Relevancy	-0.19	687	150	48 %	90 %
104	Inline CSS Kilobytes Size	-0.19	112	52	51 %	88 %
105	Variations in A Tag HREF Attributes Relevancy	-0.19	1082	49	37 %	82 %
106	Exact Matches in the HTML Tag Relevancy	-0.19	324	16	25 %	67 %
107	Has HREF Lang Technology	-0.19	1	1	8 %	71 %
108	Variations in Absolute URLs Relevancy	-0.19	6009	136	41 %	79 %
109	Variations in Distinct A Tag HREF Attributes Relevancy	-0.19	789	32	38 %	84 %
110	Number of NoFollow External Links Authority	-0.18	6	2	11 %	82 %
111	Variations in Nav Tags Relevancy	-0.18	3481	81	32 %	75 %
112	Is Home Page Other	-0.18	1	1	8 %	55 %
113	Exact Matches in H1-H6 Tags Relevancy	-0.18	3	1	16 %	68 %
114	Uses Schema url Other	-0.18	1	1	43 %	45 %
115	Uses JSON-LD description Other	-0.18	1	1	29 %	67 %
116	Number of Prices Size	-0.18	447	117	51 %	74 %
117	Exact Matches in Title Tag Relevancy	-0.18	1	1	14 %	59 %
118	Leading Variations in H1 Tags Relevancy	-0.18	1	1	20 %	75 %
119	Uses JSON-LD url Other	-0.18	1	1	34 %	79 %
120	Number of US Phone Numbers Trust	-0.18	108	8	29 %	88 %
121	Variations in Meta Description Relevancy	-0.18	44	3	40 %	58 %
122	Number of Nofollow Links Authority	-0.18	20	3	16 %	84 %
123	Number Of Claimed Brands Other	-0.18	7	2	16 %	73 %
124	Title Word Count Size	-0.18	10	7	64 %	59 %
125	Has US Phone Number Trust	-0.18	1	1	26 %	84 %
126	Number of HREF Lang Tags Size	-0.18	12	2	7 %	73 %
127	Number of H4 Tags Size	-0.17	12	3	22 %	82 %
128	Variations in H3 Tags Relevancy	-0.17	14	3	26 %	77 %
129	Headings Has Question Other	-0.17	1	1	29 %	82 %
130	Uses Schema organization Other	-0.17	1	1	22 %	70 %
131	Number of Distinct Entities Used Diversity	-0.17	54	22	49 %	89 %
132	Uses JSON-LD representativeOfPage Other	-0.17	1	1	2 %	18 %
133	Uses Schema representativeofpage Other	-0.17	1	1	2 %	18 %
134	Variations in Strong Tags Relevancy	-0.17	36	3	20 %	81 %
135	Title Length Size	-0.17	65	45	62 %	56 %
136	Leading Variations in Title Tag Relevancy	-0.17	1	1	24 %	63 %
137	Has Meta Keywords Relevancy	-0.17	1	1	9 %	36 %
138	Variations in the Canonical URL Relevancy	-0.17	39	2	32 %	78 %
139	Exact Matches in Sentences Relevancy	-0.17	209	7	18 %	66 %
140	TF/IDF Relevancy	-0.17	1	1	38 %	68 %
141	Variations in OpenGraph Title Relevancy	-0.17	3	1	36 %	45 %
142	Entities in H1 Tags	-0.17	5	2	32 %	84 %
143	Uses JSON-LD WebPage Other	-0.17	1	1	24 %	55 %
144	Number of Twitter Accounts Authority	-0.17	2	1	12 %	88 %
145	Uses JSON-LD ListItem Other	-0.17	1	1	25 %	63 %
146	Percentage of NoFollow Links Authority	-0.17	5	2	14 %	82 %
147	Is Category Page Other	-0.17	1	1	12 %	67 %
148	Uses JSON-LD BreadcrumbList Other	-0.17	1	1	25 %	66 %
149	Uses Schema webpage Other	-0.17	1	1	24 %	56 %
150	Has Meta Description Relevancy	-0.17	1	1	47 %	42 %
151	Uses JSON-LD Organization Other	-0.17	1	1	23 %	70 %
152	Percentage of NoFollow External Links Authority	-0.17	3	1	10 %	84 %
153	Uses Microdata ratingCount Other	-0.17	1	1	1 %	25 %
154	Variations Making Whole Span Tags Relevancy	-0.17	5	1	14 %	75 %
155	Uses Schema datemodified Other	-0.17	1	1	20 %	60 %
156	Has Copyright Trust	-0.16	1	1	39 %	51 %
157	Has Schema Markup Relevancy	-0.16	1	1	47 %	53 %
158	Variations in First 100 Words Relevancy	-0.16	187	8	43 %	77 %
159	Variation Density in Top 30KB Relevancy	-0.16	298	8	48 %	64 %
160	Uses Schema listitem Other	-0.16	1	1	33 %	36 %
161	Is Store Page Other	-0.16	1	1	28 %	74 %
162	Number of Questions In H3 Tags Size	-0.16	3	2	15 %	73 %
163	LSI Words in H4 Tags Relevancy	-0.16	29	6	19 %	82 %
164	Uses JSON-LD datePublished Other	-0.16	1	1	23 %	73 %
165	Uses JSON-LD ImageObject Other	-0.16	1	1	22 %	67 %
166	Uses Microdata AggregateRating Other	-0.16	1	1	1 %	27 %
167	Number of Email Addresses Trust	-0.16	9	3	32 %	64 %
168	Uses JSON-LD dateModified Other	-0.16	1	1	21 %	64 %
169	Has Entities in H1 Tags Relevancy	-0.16	1	1	33 %	84 %
170	Variations in OpenGraph Description Relevancy	-0.16	3	2	39 %	52 %
171	Variations in Footer Tags Relevancy	-0.16	4986	90	27 %	71 %
172	Uses Microdata Brand Other	-0.16	1	1	1 %	27 %
173	Uses Schema searchaction Other	-0.16	1	1	15 %	58 %
174	Entities in H2 Tags	-0.16	20	5	33 %	88 %
175	Word Count in Meta Description Size	-0.16	24	17	51 %	51 %
176	Is Search Result Page Other	-0.16	1	1	8 %	40 %
177	Is Article Page Other	-0.16	1	1	31 %	64 %
178	Search Result Has Params Other	-0.16	1	1	7 %	33 %
179	Has Email Trust	-0.16	1	1	31 %	64 %
180	Uses Schema name Other	-0.16	1	1	46 %	52 %
181	Variations making whole H1, H2, and H3 Tags Relevancy	-0.15	2	1	9 %	70 %
182	Uses Schema image Other	-0.15	1	1	13 %	79 %
183	Variations in TITLE Attributes Relevancy	-0.15	48	7	27 %	71 %
184	Leading Variations in H2 Tags Relevancy	-0.15	3	1	18 %	74 %
185	LSI Words in Title Tag Relevancy	-0.15	10	5	50 %	66 %
186	Uses Schema description Other	-0.15	1	1	40 %	41 %
187	Uses Schema imageobject Other	-0.15	1	1	28 %	37 %
188	Exact Matches in Meta Description Relevancy	-0.15	1	1	8 %	55 %
189	Search Result Has Unmodified Page Title Other	-0.15	1	1	35 %	56 %
190	Has OpenGraph Image Relevancy	-0.15	1	1	37 %	44 %
191	Uses JSON-LD SearchAction Other	-0.15	1	1	15 %	63 %
192	Uses Schema headline Other	-0.15	1	1	13 %	68 %
193	Exact Matches in A Tags Relevancy	-0.15	6	2	13 %	73 %
194	Uses Schema article Other	-0.15	1	1	7 %	60 %
195	Uses JSON-LD GovernmentOrganization Other	-0.15	1	1	2 %	19 %
196	Uses Schema governmentorganization Other	-0.15	1	1	2 %	19 %
197	Variations in I Tags Relevancy	-0.15	109	5	12 %	82 %
198	Uses JSON-LD reviewBody Other	-0.15	1	1	4 %	18 %
199	Entities in H3 Tags	-0.15	39	7	28 %	90 %
200	Has RSS Link Authority	-0.15	1	1	18 %	56 %

Measures 154166 SEO Factors

152444 Built-In SEO Factors

143219 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

SEO Factor Class

SEO Factor Type

Compare Top SEO Factors By Month

TOP SEO Factors for 2026-09 previous