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	-0.28	627	49	32 %	80 %
2	Number of Do Follow Backlinks Authority	-0.27	133206	2200	28 %	79 %
3	Number of Backlinks Authority	-0.27	134088	2283	32 %	81 %
4	Number of Unique LSI Words Used Diversity	-0.27	908	284	72 %	73 %
5	Load Time Milliseconds Performance	-0.26	20510	2124	72 %	87 %
6	Number of No Follow Backlinks Authority	-0.25	5365	150	22 %	81 %
7	Search Result Domain is .com, .net, or .org Other	-0.25	1	1	7 %	81 %
8	Search Result Domain is .com Other	-0.25	1	1	6 %	80 %
9	Number of Images Size	-0.24	81	27	60 %	88 %
10	Number of Images with ALT Text Size	-0.23	67	19	55 %	89 %
11	Number of P Tags Size	-0.23	123	40	59 %	88 %
12	Unabridged Word Count Size	-0.23	12848	1897	73 %	90 %
13	Word Count Size	-0.23	10144	1542	73 %	90 %
14	Number of Top 200 Shared Factors Used Diversity	-0.23	51	36	86 %	85 %
15	Number of Top 100 Shared Factors Used Diversity	-0.23	38	27	86 %	84 %
16	Number of Heading Tags Size	-0.23	49	21	61 %	90 %
17	Clean Text Kilobytes Size	-0.22	82	13	60 %	91 %
18	Number of Top 50 Shared Factors Used Diversity	-0.22	16	11	85 %	81 %
19	Number of H1 Tags Size	-0.22	4	1	56 %	85 %
20	Has Meta Charset Technology	-0.22	1	1	61 %	85 %
21	Number of H2 Tags Size	-0.22	14	7	55 %	85 %
22	Number of HTML Tags Size	-0.22	2216	928	73 %	87 %
23	Has JSON-LD Schema Markup Relevancy	-0.21	1	1	43 %	76 %
24	Number of DoFollow Links Authority	-0.21	333	108	67 %	87 %
25	Search Result Number of Dirs in Path Other	-0.21	4	2	64 %	77 %
26	Number of Links Authority	-0.21	336	111	67 %	87 %
27	Number of Factors Used Diversity	-0.21	396	178	87 %	78 %
28	Variations in H1, H2, and H3 Tags Relevancy	-0.21	211	9	50 %	83 %
29	Number of HTTPS Links Authority	-0.21	335	110	67 %	88 %
30	Average Words Per Sentence Size	-0.21	242	25	62 %	79 %
31	Number of Internal Links Authority	-0.21	312	98	66 %	84 %
32	Variations in H1-H6 Tags Relevancy	-0.21	267	11	51 %	84 %
33	Variations in P Tags Relevancy	-0.21	3443	63	52 %	87 %
34	Number of Unique Variations Used Diversity	-0.21	48	13	68 %	74 %
35	Number of Includes Technology	-0.2	54	23	65 %	78 %
36	Variations in H1 and H2 Tags Relevancy	-0.2	76	5	49 %	81 %
37	Number of HTML Comments Size	-0.2	492	65	56 %	85 %
38	Variations in Div Tags Relevancy	-0.2	31244	361	60 %	86 %
39	Number of Facebook Pages Authority	-0.2	5	2	44 %	87 %
40	Variations in LI Tags Relevancy	-0.2	1981	39	50 %	84 %
41	Variations in A Tags Relevancy	-0.2	4844	59	51 %	80 %
42	Number of External Links Authority	-0.2	38	13	62 %	89 %
43	Number of H3 Tags Size	-0.2	33	9	48 %	89 %
44	Number of Images without ALT Text Size	-0.2	29	8	43 %	87 %
45	Number of Distinct Entities Used Diversity	-0.2	60	23	60 %	91 %
46	Entities in Sentences Relevancy	-0.19	1891	152	52 %	93 %
47	Number of DoFollow External Links Authority	-0.19	36	12	61 %	90 %
48	Entities in the HTML Tag Relevancy	-0.19	1892	157	56 %	92 %
49	Search Result Host Length Size	-0.19	22	16	71 %	75 %
50	LSI Words in Sentences Relevancy	-0.19	3764	651	51 %	93 %
51	Variations in Search Result Document File Name Relevancy	-0.19	7	1	38 %	85 %
52	Has Form Technology	-0.19	1	1	36 %	71 %
53	Search Result Domain Length Size	-0.19	22	16	71 %	75 %
54	Variations in H2 Tags Relevancy	-0.19	71	4	42 %	79 %
55	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.19	5	2	36 %	80 %
56	Variations in H1 Tags Relevancy	-0.19	11	1	43 %	79 %
57	Search Result Uses HTTPS Other	-0.19	1	1	70 %	71 %
58	Flesch Kincaid Reading Grade Level Other	-0.19	6	1	82 %	87 %
59	Variations in Body Tags Relevancy	-0.19	97091	833	68 %	83 %
60	Number of Instagram Pages Authority	-0.19	13	2	34 %	84 %
61	Variation Count in Top 30KB Relevancy	-0.19	6580	84	54 %	76 %
62	Number of CSS Includes Technology	-0.19	21	8	60 %	67 %
63	Number of LinkedIn Pages Authority	-0.19	4	1	24 %	81 %
64	Variations in ALT Attributes Relevancy	-0.19	151	7	36 %	81 %
65	Leading Variations in H1-H6 Tags Relevancy	-0.18	6	2	38 %	82 %
66	Variations in HTML Tags Relevancy	-0.18	97091	816	66 %	85 %
67	Number of Forms Technology	-0.18	6	2	37 %	78 %
68	Uses JSON-LD name Other	-0.18	1	1	45 %	73 %
69	Number of Social Pages Authority	-0.18	15	5	50 %	85 %
70	Percentage of DoFollow External Links Authority	-0.18	38	13	60 %	77 %
71	Entities in H2 Tags	-0.18	28	7	40 %	93 %
72	Variations in Span Tags Relevancy	-0.18	729	17	41 %	84 %
73	Variations in Sentences Relevancy	-0.18	3407	81	60 %	84 %
74	Term Frequency Relevancy	-0.18	6	3	65 %	76 %
75	Page Size Kilobytes Size	-0.18	788	292	71 %	59 %
76	Number of Questions In Headings Size	-0.18	9	3	33 %	84 %
77	Percentage of DoFollow Links Authority	-0.18	99	78	67 %	75 %
78	Variations in A Tag HREF Attributes Relevancy	-0.18	2213	59	47 %	82 %
79	Variations in H3 Tags Relevancy	-0.18	135	4	34 %	83 %
80	Number Of JSON-LD Types Relevancy	-0.17	67	17	46 %	83 %
81	Number of Social Accounts Authority	-0.17	5	2	30 %	83 %
82	Percentage of DoFollow Internal Links Authority	-0.17	87	65	64 %	68 %
83	Variations in Search Result URL Path Relevancy	-0.17	7	1	39 %	83 %
84	Number of Sentences Size	-0.17	541	141	71 %	85 %
85	Number of Facebook Accounts Authority	-0.17	3	1	19 %	79 %
86	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	1343	37	47 %	83 %
87	Has Meta Viewport Technology	-0.17	1	1	68 %	71 %
88	Headings Has Question Other	-0.17	1	1	33 %	79 %
89	Has Meta Robots Other	-0.17	1	1	23 %	75 %
90	LSI Words in H2 Tags Relevancy	-0.17	69	18	42 %	88 %
91	Entities in H1 Tags	-0.17	5	2	41 %	89 %
92	Entities in H3 Tags	-0.17	39	7	34 %	93 %
93	Search Result Summary Length Size	-0.17	216	149	85 %	67 %
94	Number of Absolute URLs Authority	-0.17	523	227	71 %	69 %
95	Inline CSS Kilobytes Size	-0.17	154	54	55 %	83 %
96	Variations in Main Tags Relevancy	-0.17	15167	185	30 %	84 %
97	Title Length Size	-0.17	129	50	69 %	56 %
98	Uses JSON-LD url Other	-0.17	1	1	40 %	73 %
99	Number of Questions In H3 Tags Size	-0.16	5	2	18 %	79 %
100	Variations in Meta Description Relevancy	-0.16	44	2	49 %	70 %
101	Has Entities in H2 Tags Relevancy	-0.16	1	1	41 %	89 %
102	Inline JavaScript Kilobytes Size	-0.16	557	117	67 %	53 %
103	Is Home Page Other	-0.16	1	1	13 %	57 %
104	Has Contact Page Trust	-0.16	1	1	47 %	61 %
105	Variations in Nav Tags Relevancy	-0.16	9938	90	38 %	80 %
106	Number of JavaScript Includes Technology	-0.16	40	16	67 %	80 %
107	Has Privacy Policy Trust	-0.16	1	1	43 %	65 %
108	Variations in Search Result URL Relevancy	-0.16	13	2	48 %	78 %
109	Variations in Absolute URLs Relevancy	-0.16	6009	110	50 %	82 %
110	Has Apple Touch Icon Technology	-0.16	1	1	41 %	75 %
111	Variations in the Title Tag Relevancy	-0.16	10	2	53 %	69 %
112	Variations in Search Result Link Text Relevancy	-0.16	10	2	73 %	72 %
113	Variation Density in Top 30KB Relevancy	-0.16	298	6	54 %	66 %
114	Entities in Title Tag Relevancy	-0.16	10	3	52 %	92 %
115	Title Word Count Size	-0.16	17	8	70 %	61 %
116	Variations in OpenGraph Title Relevancy	-0.16	7	2	46 %	60 %
117	Variations in First 100 Words Relevancy	-0.16	187	9	53 %	77 %
118	Variations in Search Result Display URL Relevancy	-0.16	10	2	73 %	73 %
119	Has US Phone Number Trust	-0.16	1	1	28 %	72 %
120	Has Entities in H1 Tags Relevancy	-0.16	1	1	41 %	88 %
121	Leading Variations in H2 Tags Relevancy	-0.16	3	1	21 %	77 %
122	Variations in Section Tags Relevancy	-0.16	1231	34	33 %	85 %
123	LSI Words in H3 Tags Relevancy	-0.16	72	20	37 %	91 %
124	Variations in OpenGraph Description Relevancy	-0.16	24	2	44 %	63 %
125	Is Article Page Other	-0.16	1	1	34 %	66 %
126	Leading Variations in H1 Tags Relevancy	-0.16	1	1	22 %	77 %
127	Exact Matches in the HTML Tag Relevancy	-0.16	324	10	28 %	81 %
128	Variations in Footer Tags Relevancy	-0.16	4986	48	34 %	76 %
129	Uses JSON-LD description Other	-0.15	1	1	36 %	69 %
130	Clean Keyword Density in the HTML Tag Relevancy	-0.15	204	7	56 %	63 %
131	Number Of Claimed Brands Other	-0.15	38	3	21 %	75 %
132	Number of US Phone Numbers Trust	-0.15	108	8	30 %	82 %
133	Number of Email Addresses Trust	-0.15	19	4	36 %	73 %
134	Leading Variations in Title Tag Relevancy	-0.15	1	1	26 %	76 %
135	Uses Schema organization Other	-0.15	1	1	28 %	67 %
136	Number of Twitter Accounts Authority	-0.15	2	1	13 %	81 %
137	Has Schema Markup Relevancy	-0.15	1	1	54 %	56 %
138	Number of Nofollow Links Authority	-0.15	20	3	17 %	82 %
139	Variations in the Canonical URL Relevancy	-0.15	39	2	41 %	75 %
140	Number of Questions Size	-0.15	55	14	58 %	73 %
141	LSI Words in H1 Tags Relevancy	-0.15	9	4	43 %	88 %
142	Uses Schema name Other	-0.15	1	1	51 %	53 %
143	Number of H4 Tags Size	-0.15	12	3	26 %	81 %
144	Number of Prices Size	-0.15	484	115	59 %	79 %
145	Exact Matches in Top 30KB Relevancy	-0.15	8	2	17 %	75 %
146	Has Terms of Service Trust	-0.15	1	1	30 %	59 %
147	Exact Matches in H1-H6 Tags Relevancy	-0.15	8	1	17 %	79 %
148	Variations in Strong Tags Relevancy	-0.15	40	3	24 %	81 %
149	Uses JSON-LD Organization Other	-0.15	1	1	27 %	68 %
150	Variations in Script Tags Relevancy	-0.15	29554	256	57 %	74 %
151	Has Entities in H3 Tags Relevancy	-0.15	1	1	34 %	88 %
152	Number of NoFollow External Links Authority	-0.15	7	2	12 %	82 %
153	Has FavIcon Technology	-0.15	1	1	64 %	59 %
154	Has OpenGraph Type Relevancy	-0.15	1	1	52 %	55 %
155	Has OpenGraph Image Relevancy	-0.14	1	1	45 %	53 %
156	Uses Schema datemodified Other	-0.14	1	1	26 %	68 %
157	Number of Questions In H2 Tags Size	-0.14	4	1	21 %	82 %
158	Word Count in Meta Description Size	-0.14	54	18	59 %	63 %
159	Has Canonical URL Authority	-0.14	1	1	61 %	60 %
160	Uses Schema url Other	-0.14	1	1	48 %	52 %
161	Uses JSON-LD datePublished Other	-0.14	1	1	26 %	73 %
162	Is Store Page Other	-0.14	1	1	33 %	71 %
163	TF/IDF Relevancy	-0.14	1	1	49 %	74 %
164	Number of Meta Generator Tags Technology	-0.14	2	1	27 %	66 %
165	Meta Description Length Size	-0.14	394	115	59 %	62 %
166	Uses JSON-LD BreadcrumbList Other	-0.14	1	1	30 %	65 %
167	Uses JSON-LD ListItem Other	-0.14	1	1	30 %	66 %
168	Uses JSON-LD ImageObject Other	-0.14	1	1	25 %	67 %
169	Entities in Meta Description Tag Relevancy	-0.14	17	3	46 %	88 %
170	Variations Making Whole Span Tags Relevancy	-0.14	6	1	18 %	76 %
171	Is OpenGraph Type Article Technology	-0.14	1	1	24 %	58 %
172	Uses JSON-LD dateModified Other	-0.14	1	1	25 %	68 %
173	Percentage of NoFollow Links Authority	-0.14	7	2	15 %	79 %
174	Has Meta Description Relevancy	-0.14	1	1	57 %	56 %
175	Has Email Trust	-0.14	1	1	36 %	66 %
176	Uses Schema webpage Other	-0.14	1	1	28 %	69 %
177	Exact Matches in Title Tag Relevancy	-0.14	1	1	14 %	77 %
178	Variations Making Whole LI Tags Relevancy	-0.14	7	1	22 %	78 %
179	Variations in Article Tags Relevancy	-0.14	356	20	20 %	76 %
180	Uses JSON-LD WebPage Other	-0.14	1	1	27 %	67 %
181	LSI Words in Title Tag Relevancy	-0.14	12	5	51 %	80 %
182	Variations in I Tags Relevancy	-0.13	138	4	16 %	81 %
183	Uses JSON-LD SearchAction Other	-0.13	1	1	18 %	65 %
184	Uses Microdata AggregateRating Other	-0.13	1	1	2 %	15 %
185	Uses Schema searchaction Other	-0.13	1	1	18 %	65 %
186	Percentage of NoFollow External Links Authority	-0.13	4	1	11 %	81 %
187	Uses Schema telephone Other	-0.13	1	1	20 %	60 %
188	Search Result URL Length Size	-0.13	110	67	84 %	42 %
189	Has Google Verify Technology	-0.13	1	1	15 %	72 %
190	Uses Microdata ratingCount Other	-0.13	1	1	2 %	12 %
191	Has RSS Link Authority	-0.13	1	1	21 %	59 %
192	Leading Variations in H3 Tags Relevancy	-0.13	6	1	17 %	82 %
193	Search Result Has Unmodified Page Title Other	-0.13	1	1	36 %	55 %
194	Variations making whole A Tags Relevancy	-0.13	22	2	25 %	79 %
195	Has HREF Lang Technology	-0.13	1	1	9 %	74 %
196	Variations in Button Tags Relevancy	-0.13	1596	14	12 %	78 %
197	Uses Schema addresslocality Other	-0.13	1	1	19 %	67 %
198	Uses Schema image Other	-0.13	1	1	17 %	71 %
199	Variations in Search Result Summary Relevancy	-0.13	43	3	73 %	68 %
200	Has XMLRPC Technology	-0.13	1	1	20 %	62 %

Measures 154474 SEO Factors

152752 Built-In SEO Factors

143525 On-page SEO Factors

9227 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